Patent for Sale:

Large Portfolio of Telecommunication Patents    

Over eighty issued U.S. patents and their international counterparts.


The portfolio covers many technologies areas including - image processing, mobile networks, optical networks, wired networks, multimedia, data security, intergrated circuits and geographical information systems.

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 356: Optics: Measuring And Testing

Methods and apparatus (1) for analyzing light to measure or test its characteristics, such as intensity, color and polarization; (2) for determining the optical or nonoptical properties of materials or articles by noting, as by inspection, measurement, or test the effect produced by the materials or articles on light associated therewith; and (3) for measuring the dimensions of structures or the spatial relationships such as distances or angle bearings of spaced points by comparison of the respective properties (usually direction or spatial position) of the light from these points or by comparison of the properties of these lights with some scale or standard. The light analyzing includes or is for spectroscopy, interference, polarization, beam direction or pattern, focal position of a light source, shade or color, and photometers. The material or article properties determined are or involve crystal or gem examination, material strain analysis, blood analysis, optical pyrometers, egg candling, cutting blade sharpness, oil testing, document verification, flatness, lens or reflector testing, refraction testing, monitoring moving webs or fabrics, light transmission or absorption, light reflection, inspection for flaws or imperfections in materials, and thread counting. The dimensioning and spatial relationship determination includes triangulation by a light beam, contour plotting, range or height finders, motion stopping, velocity or velocity/height measuring, sighting where the optical element or reticle moves with the sighted object, particle size determination, particle light scattering, electrophoresis, angle measuring or axial alignment, mensuration or configuration comparison, alignment in a lateral direction, and fiducial instruments.

Subclass 618: Moire

Class 250: Radiant Energy

This class provides for all methods and apparatus for using, generating, controlling or detecting radiant energy, combinations including such methods or apparatus, subcombinations of same and accessories therefore not classifiable elsewhere.

Subclass 237G: Gratings (moire fringes)

Class 370: Multiplex Communications

This is the generic class for multiplexing or duplexing systems, methods, or apparatus.

Subclass 216: FAULT RECOVERY
Subclass 328: Having a plurality of contiguous regions served by respective fixed stations
Subclass 329: Channel assignment
Subclass 331: Hand-off control
Subclass 335: Combining or distributing information via code word channels using multiple access techniques (e.g., CDMA)
Subclass 338: Contiguous regions interconnected by a local area network
Subclass 342: Combining or distributing information via code word channels using multiple access techniques (e.g., CDMA)
Subclass 353: Switching network having common elements to handle both circuit switched traffic and packet switched traffic
Subclass 360: Switching control
Subclass 395.3: Connection identifier assignment
Subclass 395.65: Adapting connectionless variable bit rate (VBR) data (e.g., adapting 802.X, or using AAL5)
Subclass 397: Employing logical addressing for routing (e.g., VP or VC)
Subclass 399: Employing logical addressing for routing (e.g., VP or VC)
Subclass 409: Employing logical addressing for routing (e.g., VP or VC)
Subclass 444: With priority resolution
Subclass 462: Arbitration for access to a channel
Subclass 465: Adaptive
Subclass 468: Assignment of variable bandwidth or time period for transmission or reception

Class 379: Telephonic Communications

(1) Systems, processes and instruments for the two-way electrical transmission of intelligible audio information having arbitrary content over a link including an electrical conductor, between spaced apart locations, so as to enable conversation therebetween, and intended for the private use of a listener or a group of listeners. The term "intelligible" used above is intended to include the capability for transmission of speech or the like (e.g., music), rather than restriction to a specified audible signal, such as a bell or buzzer. (2) Switching, signalling or signal transmission peculiar to, or specified as for a telephone or a telephone system, except for multiplex communications as indicated in Lines With Other Classes.


Class 330: Amplifiers

This is the generic class for amplifiers, included: Amplifiers having all types of active elements (or amplifying devices), amplifier systems having plural amplifier channels, cascade amplifiers, push-pull amplifiers and other amplifiers having plural amplifier devices. Also included are amplifiers with plural signal sources or plural loads. Amplifiers including the means coupling the signal source to the amplifier or coupling the amplifier to the load or between cascaded stages are also included. Amplifiers combined with tone control means. Amplifiers combined with amplitude (volume) control means whether by manual control, by control of an electrode D.C. bias. Amplifiers combined with power supply. Amplifiers combined with structural features of the amplifier or the amplifier circuit elements. Amplifiers having signal feedback means.

Subclass 253: Having field effect transistor
Subclass 258: Having common mode rejection circuit
Subclass 277: Including field effect transistor

Class 348: Television

Generating, processing, transmitting or transiently displaying a sequence of images, either locally or remotely, in which the local light variations composing the images may change with time.

Subclass 155: Motion detection
Subclass 699: Motion vector generation
Subclass 700: Motion dependent key signal generation or scene change detection
Subclass 701: Specified processing of frame or field difference signal (e.g., noise reduction, key signal spreading)
Subclass E5.066: Movement estimation (EPO)

Class 375: Pulse Or Digital Communications

This is the generic class for pulse or digital communication systems using electrical or electromagnetic signals. Such communication includes transmitting an intelligence bearing signal from one point to another in the form of discrete variations in some parameter of the electrical or electromagnetic signal.

Subclass 222: Modems (data sets)
Subclass 225: Data rate
Subclass 240.01: Television or motion video signal
Subclass 240.08: Feature based
Subclass 240.21: Subsampling
Subclass 240.25: Specific decompression process
Subclass 240.26: Associated signal processing
Subclass E7.045: Concerning filter implementation (EPO)
Subclass E7.113: Sub-pixel accuracy (EPO)
Subclass E7.142: Transform coefficients scan, e.g., zig-zag scan (EPO)
Subclass E7.161: Input video signal characteristics (EPO)
Subclass E7.176: Block or macroblock (EPO)
Subclass E7.177: Transform coefficient (EPO)
Subclass E7.226: Involving transform coding, e.g., using discrete cosine transform (DCT) (EPO)
Subclass E7.229: Involving the use of at least one adaptive element, e.g., Joint Photographic Experts Group (JPEG) coding (EPO)
Subclass E7.252: Involving spatial subsampling or upsampling; Alteration of picture size or resolution (EPO)

Class 706: Data Processing:Artificial Intelligence

This is a generic class for artificial intelligence type computers and digital data processing systems and corresponding data processing methods and products for emulation of intelligence (i.e., knowledge based systems, reasoning systems, and knowledge acquisition systems); and including systems for reasoning with uncertainty (e.g., fuzzy logic systems), adaptive systems, machine learning systems, and artificial neural networks.

Subclass 52: Reasoning under uncertainty (e.g., fuzzy logic)
Subclass 7: Having function calculator
Subclass 9: Defuzzification processing

Class 708: Electrical Computers: Arithmetic Processing And Calculating

This is the generic class for electrical apparatus and corresponding methods for performing calculation operations. There are three main divisions: 1. electrical hybrid calculating computers; 2. electrical digital calculating computers; 3. electrical analog calculating computers.

Subclass 626: Sum of cross products

Class 363: Electric Power Conversion Systems

Conversion systems wherein a single electrical source circuit is coupled to a single electrical load circuit.

Subclass 131: In transistor inverter systems
Subclass 134: Separately driven
Subclass 20: Single-ended, separately-driven type
Subclass 21.04: For forward-type converter
Subclass 60: Including semiconductor means
Subclass 89: With transistor control means in the line circuit

Class 385: Optical Waveguides

(1) An optical waveguiding element, which conveys light from one point to another through an optically transparent elongated structure by modal transmission, total internal reflection, or total reflectorization. (2) A combination of an optical waveguiding element with an additional broadly recited optical element which couples light or a combination. (3) A combination of an optical waveguiding element with structure which mechanically joins this waveguiding element with another or with a diverse optical element. (4) An optical modulator where the modulation of a light wave characteristic is performed exclusively within an optical waveguiding element. (5) Other miscellaneous devices formed of an optical waveguide (e.g., a waveguide sensing device) and supplemental devices which are limited to use with an optical waveguide (e.g., an external clamp or retainer).

Subclass 114: Ribbon cable
Subclass 125: Utilizing nonsolid core or cladding
Subclass 127: Concentric
Subclass 13: Including physical deformation or movement of waveguide
Subclass 135: Splice box and surplus fiber storage/trays/organizers/ carriers
Subclass 28: Coupling between modes in a waveguide or fiber
Subclass 96: Fusion splicing
Subclass 97: Alignment of fiber ends prior to splicing
Subclass 98: End-to-end (butt) coupling
Subclass 99: Including splice joint reinforcement

Class 713: Electrical Computers And Digital Processing Systems: Support

Subclass 156: By certificate
Subclass 158: Revocation or expiration
Subclass 170: Authentication of an entity and a message
Subclass 176: Authentication by digital signature representation or digital watermark
Subclass 178: Time stamp
Subclass 180: Generating specific digital signature type (e.g., blind, shared, or undeniable)
Subclass 181: Message digest travels with message

Class 380: Cryptography

Equipment and processes which (a) conceal or obscure intelligible information by transforming such information so as to make the information unintelligible to a casual or unauthorized recipient, or (b) extract intelligible information from such a concealed representation, including breaking of unknown codes and messages.

Subclass 202: Having origin or program ID
Subclass 239: Encrypted code control signal
Subclass 30: Public key

Class 372: Coherent Light Generators

An assembly of electrical, mechanical, and optical components produces an intense, coherent, directional beam of light by stimulating electronic, ionic, or molecular transitions to lower energy levels.

Subclass 32: Frequency

Class 358: Facsimile And Static Presentation Processing

Communication or reproduction of a static image or sequence of static images in which the local light, or density variations composing the image do not vary with time by a method or apparatus involving at least one of the following steps: (1) scanning a static image to capture an image-containing area by resolving it into an area; (2) communication of an image-representative signal or image-representative data over any supporting communication network; or (3) reproduction of an image-containing area in response to an image-representative signal or image-representative image data by reproducing a corresponding image area which at least one of the two dimensions is elemental, simultaneously or in a sequence. In this class, a facsimile system or method is a system or method for the communication or reproduction of an arbitrarily composed image in which the local light, or density variations composing the image do not vary with time, such as documents maps, charts, photographs, etc., but not motion picture film or video.

Subclass 1.9: Attribute control
Subclass 403: Document filing and retrieval system

Class 382: Image Analysis

This is the generic class for apparatus and corresponding methods for the automated analysis of an image or recognition of a pattern. Included herein are systems that transform an image for the purpose of (a) enhancing its visual quality prior to recognition, (b) locating and registering the image relative to a sensor or stored prototype, or reducing the amount of image data by discarding irrelevant data, and (c) measuring significant characteristics of the image.

Subclass 100: APPLICATIONS
Subclass 107: Motion or velocity measuring
Subclass 113: Reading maps, graphs, drawings, or schematics
Subclass 156: Neural networks
Subclass 190: Feature extraction
Subclass 202: Linear stroke analysis (e.g., limited to straight lines)
Subclass 209: Template matching (e.g., specific devices that determine the best match)
Subclass 218: Comparator
Subclass 236: Interframe coding (e.g., difference or motion detection)
Subclass 245: Run-length coding
Subclass 246: Huffman or variable-length coding
Subclass 260: Image filter
Subclass 261: Adaptive filter
Subclass 293: Changing the image coordinates
Subclass 305: Image storage or retrieval

Class 709: Electrical Computers And Digital Processing Systems: Multicomputer Data Transferring

This class provides for an electrical computer or digital data processing system or corresponding data processing method including apparatus or steps for transferring data or instruction information between a plurality of computers wherein the computers employ the data or instructions before or after transferring and the employing affects said transfer of data or instruction information. The class includes - process or apparatus for transferring data among a plurality of spatially distributed (i.e., situated, at plural locations) computers or digital data processing systems via one or more communications media (e.g., computer networks).

Subclass 203: Compression/decompression
Subclass 204: Format conversion
Subclass 205: Normalization
Subclass 231: Microprocessor
Subclass 235: Uses look-up table

Class 323: Electricity: Power Supply Or Regulation Systems

This is the generic class for electrical systems wherein a single electrical source is coupled to a single electrical load circuit and means are provided which control the magnitude or level of the current or voltage of either or both of said circuits and/or the phase angle between the current or voltage of either or both of said circuits. This is also the generic class for transformer systems and impedance systems.

Subclass 313: To derive a voltage reference (e.g., band gap regulator)
Subclass 314: With additional stage
Subclass 315: Including parallel paths (e.g., current mirror)

Class 327: Miscellaneous Active Electrical Nonlinear Devices, Circuits, And Systems

This is the residual class for electrical devices, circuits or systems having an output not directly proportional to its input and comprising at least one component which can provide gain or can route electrical current and which device, circuit or system does not form a complete system such as is classified specifically elsewhere or a subcombination of utility only in such elsewhere classified system.

Subclass 296: Plural clock outputs with multiple inputs

Class 711: Electrical Computers And Digital Processing Systems: Memory

This class provides, within an electrical computer or digital data processing system, for the following processes and apparatus 1. for addressing memory wherein the processes and apparatus involve significant address manipulating (e.g., combining, translating, or mapping and other techniques for formatting and modifying address data) and are combined with specific memory configurations or memory systems; 2. for accessing and controlling memory (e.g., transferring and modifying address data, selecting storage devices, scheduling access); and 3. for forming memory addresses (e.g., virtual memory addressing, address translating, translation-lookaside buffers (TLBs), boundary checking, and page mode).

Subclass 214: Operand address generation
Subclass 217: Generating a particular pattern/sequence of addresses
Subclass 218: Sequential addresses generation
Subclass 5: For multiple memory modules (e.g., banks, interleaved memory)

Class 345: Computer Graphics Processing And Selective Visual Display Systems

Processes and apparatus for selective electrical control of two or more light-generating or light-controlling display elements* in accordance with a received or stored image data signal. The image data includes character, graphical information or display attribute data. The image data may include, for example, information data from a peripheral input device, from the reception of a television signal, from the recognition of image data, or from the generation or creation of image data by a computer.

Subclass 505: Parallel processors (e.g., identical processors)
Subclass 573: Plural address generators
Subclass 629: Merge or overlay

Class 700: Data Processing: Generic Control Systems Or Specific Applications

This class is structured into two main divisions: (1)for the combination of a data processing or calculating computer apparatus (or corresponding methods for performing data processing or calculating operations) AND a device or apparatus controlled thereby, the entirety hereinafter referred to as a "control system". (2)for data processing or calculating computer apparatus (or corresponding methods for performing data processing or calculating operations) wherein the data processing or calculating computer apparatus is designed for or utilized in a particular art device, system, process, or environment, or is utilized for the solution of a particular problem in a field other than mathematics (arithmetic processing per se is classified elsewhere).


Class 701: Data Processing:Vehicles, Navigation, And Relative Location

This class provides for electrical computers, digital data processing systems, and data processing processes for transferring data between computers or processes wherein the computers or processes employ the data before or after transferring and the employing affects the transfer of data therebetween. This class is for electricalapparatus and corresponding methods for performing data processing operations in which there is a significant change in the data or for performing calculation operations wherein the electrical data processing system or calculating computer functions to indicate a condition of a vehicle, to regulate the movement of a vehicle, to monitor the operation of a vehicle, or to solve a diagnostic problem with the vehicle. It also provides electrical apparatus and corresponding methods wherein the electrical data processing system or calculating computer function to determine the course, position, or distance traveled. It further provides electrical apparatus and corresponding methods wherein the electrical data processing system or calculating computer functions to determine the relative location of an object (e.g., person or vehicle) and may include communication of the determined relative location to a remote location. In this class there are three main divisions: 1. vehicle control, guidance, operation or indication; 2. navigation; 3. relative location

Class 707: Data Processing:Database And File Management Or Data Structures

This is the generic class for data processing apparatus and corresponding methods for the retrieval of data stored in a database or as computer files. It provides for data processing means or steps for generic data, file and directory upkeeping, file naming, and file and database maintenance including integrity consideration, recovery, and versioning. There are three main divisions: 1. database and file accessing; 2. database schema and data structure; 3. file and database maintenance.

Subclass E17.018: In geographical information databases (EPO)
Subclass E17.023: Using a combination of image content features (EPO)

Class 705: Data Processing:Financial, Business Practice, Management, Or Cost/Price Determination

This is the generic class for apparatus and corresponding methods for performing data processing operations, in which there is a significant change in the data or for performing calculation operations wherein the apparatus or method is uniquely designed for or utilized in the practice, administration, or management of an enterprise, or in the processing of financial data. It also provides for apparatus and corresponding methods for performing data processing or calculating operations in which a charge for goods or services is determined.

Subclass 39: Including funds transfer or credit transaction
Subclass 42: Remote banking (e.g., home banking)

Class 714: Error Detection/Correction And Fault Detection/Recovery

This class provides for process or apparatus for detecting and correcting errors in electrical pulse or pulse coded data; it also provides for process or apparatus for detecting and recovering from faults in electrical computers and digital data processing systems, as well as logic level based systems.

Subclass 716: Loop-back
Subclass 758: Error correcting code with additional error detection code (e.g., cyclic redundancy character, parity)

Class 398: Optical Communications

This class provides for all types of communication systems in which optical signals are used to transmit modulated carrier wave information between points. Such communication includes transmitting an intelligence-bearing signal from one point to another in the form of variations in a characteristic of the light wave. The communication may be through free space, fibers or waveguides. These are used to transfer the information with an optical beam, and this beam can be used in various communication schemes to enable the most effective or desired method of moving the information, including optical multiplexing when plural information signals or plural transmitters and receivers are utilized.

Subclass 48: Wavelength
Subclass 49: Router
Subclass 58: Optical local area network (LAN)
Subclass 63: Passive star
Subclass 87: Grating
Subclass 98: Time division

Class 216: Etching A Substrate: Processes

Chemical etching processes for treating articles of commerce or intermediate articles not otherwise provided for in which one of the manufacturing steps includes a chemical etching step (use of an etchant) and wherein the material treated is not completely removed.


Class 138: Pipes And Tubular Conduits

Tubular members of definite or indefinite length including wall structure of the tubular members. Fluid pressure compensators, flow regulators, or baffles not restricted by structure to use with any particular art. Devices for thawing frozen fluid in pipes, for preventing the fluid in the pipes from freezing and for preventing the pipe from bursting if frozen. Pipes with closures and plugs where tied with the structure of the pipe or limited by structure to use with a pipe. Methods and apparatus for repairing pipes where not elsewhere classifiable.

Subclass 120: Joined sections
Subclass 162: Tongue and slot
Subclass 166: With tongue in slot
Subclass 168: With interlocking hooks

Class 455: Telecommunications

This is the generic class for modulated carrier wave communications not elsewhere classifiable.

Subclass 25: Directive antenna
Subclass 436: Handoff
Subclass 439: Handoff initiated by another source (e.g., target, user initiated, mobile switching center (MSC), or mobile telephone switching office (MTSO), etc.)
Subclass 442: Soft handoff
Subclass 446: Including cell planning or layout
Subclass 450: Channel allocation
Subclass 451: Hybrid allocation
Subclass 452.1: Dynamic allocation
Subclass 453: Load balancing
Subclass 63.4: Directional antenna

Class G9B/27.01:

Class G9B/27.051:

Class 65: Glass Manufacturing

(1) processes and/or apparatus for making stock or articles of those ceramic masses, which generally include a "glass former" or an oxide which approaches glass forming properties, in their composition and which are formed by fusion of raw materials (generally mixtures, most of which are of an earthy nature - as distinguished from metallic, organic, etc., - silicon, silica, and slag are included) at ordinary high furnace temperatures, by working (molding, shaping, etc.) of the mass after being melted or changed to a plastic or softened state by heating; and (2) processes and/or apparatus for treating stock or articles made

Subclass 428: Collapsing tube

Class 718: Electrical Computers And Digital Processing Systems: Virtual Machine Task Or Process Management Or Task Management/Control

This class provides for an electrical computer or digital data processing system or corresponding data processing method including apparatus or steps for administrating over processor or job execution in a digital data processing system whether in a virtual machine or otherwise. Subject matter includes - virtual machine task or process management, and task management or control in general.

Subclass 105: Load balancing

Class 725: Interactive Video Distribution Systems

This class contains interactive video distribution processes, systems, and elements thereof, which are characterized by point-to-multipoint system configurations, and which are used for the unidirectional distribution or delivery of motion video data resulting from interactions between systems operators (access or service providers) or users (subscribers) and systems elements. These systems include dedicated communications systems, such as television distribution systems, which primarily distribute or deliver motion video data in the manner indicated, but which may, in addition, provide a framework for further, diverse data communications or services in either unidirectional or bidirectional form. Typically, system operators interface with transmitter-side elements or users interface with receiver-side elements in order to facilitate, through interaction with such elements, the dynamic control of data processing or data flow at various points in the systems. This interaction is typically occasional or intermittent in nature.

Subclass 119: Having significant intermediate network unit (e.g., hub, substation, etc.)
Subclass 126: Detail of use of two-way spectrum

Class 704: Data Processing:Speech Signal Processing, Linguistics, Language Translation, And Audio Compression/Decompression

This is the generic class for apparatus and corresponding methods for constructing, analyzing, and modifying units of human language by data processing, in which there is a significant change in the data.This class also provides for systems or methods that process speech signals for storage, transmission, recognition, or synthesis of speech; and for systems or methods for bandwidth compression or expansion of an audio signal, or for time compression or expansion of an audio signal. There are three main divisions: linguistics; speech signal processing; and audio compression.

Subclass E19.009: Audio watermarking, i.e., embedding inaudible data in the audio signal (EPO)

Class G9B/20.002:

Class 359: Optical: Systems And Elements

Optical elements included in this class are: Lenses; Polarizers; Diffraction gratings; Prisms; Reflectors; Filters; Projection screens; Optical Modulators; Optical Demodulators. Among the optical systems included in this class are: Compound lens systems; Light reflecting signalling systems (e.g., retroreflectors); stereoscopic systems; Binocular devices; Systems of lenticular elements; Systems involving light interference; Glare reducing systems; Light dividing and combining systems; Light control systems (e.g., light valves); building illumination with natural light; Systems for protecting or shielding elements; Optical systems whose operation depends upon polarizing, diffracting, dispersing, reflecting, or refracting light; kaleidoscopes. Further included are certain apertures, closures, and viewing devices of a specialized nature which involve no intentional reflection, refraction, or filtering of light rays. This class also includes optical elements combined with another type of structure(s) to constitute an optical element combined with a nonoptical structure or a perfection or improvement in the optical element.

Subclass 337: Correction of deleterious effects

Class 254: Implements Or Apparatus For Applying Pushing Or Pulling Force

Implements or apparatus for applying a pushing or pulling force directly to either (a) an object to be moved, or (b) a generally stationary object upon which pressure or tension is to be exerted. It comprises jacks (including lifting jacks, floor jacks, and analogous implements), extracting apparatus (including stump pullers and nail extractors), tensioning apparatus (including belt, carpet and wire stretchers), hoist trucks, and cable-type load hauling or hoisting apparatus. Also included in this class is the subcombination of a cable guide which (1) is a component of, or used in combination with, an implement or an apparatus of this class, and (2) is intended to guide a cable which is directly connected to either the object or an object-supporting or -engaging member.

Subclass 134.5: Tractor for pulling wire (e.g., battery-powered)
Subclass 215: Juxtaposed to material or cable at single locus
Subclass 221: With projections or apertures on drum for engagement with complementary formations on material or cable
Subclass 227: With ground-engaging support means
Subclass 393: Plural elements or element with plural cable contacting regions

Class 349: Liquid Crystal Cells, Elements And Systems

Cells, elements, and systems which include molecules of a material having both liquid and crystalline properties. Included in this class are those which have a significant liquid crystal cell detail or liquid crystal response or properties, and in which the liquid crystal controls or changes the optical properties of electromagnetic radiation such as direction, phase, amplitude, frequency, or polarization state. This class also provides for nominal manufacturing methods for producing significant liquid crystal cell structure.


Class 137: Fluid Handling

Fluid material handling, and takes processes, systems, combinations, subcombinations and certain elements pertaining thereto not otherwise classified. Fluid materials include gas and liquids primarily, but the handling of other flowable materials, as fluent granular solids, is also found. Handling of fluent material by flow, as by confining, directing, causing and/or controlling the flow, and includes making the material available for flow or separating a smaller from a larger body of fluid material, as by tanks, containers, receivers, traps, etc., or pipes or conduits, with or without siphons, pumps, pressure or displacing fluids or other flow imparting means.

Subclass 15.01: Cleaning, repairing, or assembling

Class 405: Hydraulic And Earth Engineering

The control or treatment of water in open channels, naturally or artificially occurring bodies of water, or of water otherwise lying on the earth"s surface. The control or treatment of earth material is situ, and the securement or stabilization of structures in the earth. Storage of fluid in underground cavities and disposal of waste in the earth. Tunnel construction or pipe or cable laying or retrieving. Apparatus and methods by which underwater work operations may be performed. Apparatus and methods for launching a marine vessel into or removing it from a body of water, transportation of a vessel across dry land, or exposing a normally wetted surface, e.g., a vessel"s hull, to the atmosphere.

Subclass 183.5: Moving cable within pipe
Subclass 184: Advancing subterranean length of pipe or cable
Subclass 184.4: Supporting, anchoring, or positioning of pipe or cable

Class 226: Advancing Material Of Indeterminate Length

A process or apparatus for handling indeterminate-length* material in one of the following ways: (1) moving such material in a direction generally along said length dimension, (2) sensing such material and imparting additional movement to, or otherwise controlling movement of, said material responsive to said sensing, (3) threading a new portion of such material into or through material moving apparatus or (4) constraining such material through a certain path of movement relative to a disclosed material moving apparatus.

Subclass 189: Plural spaced apart rolls (e.g., guide rolls)

Class 242: Winding, Tensioning, Or Guiding

Subclass 615.1: Variable guide path
Subclass 615.2: Rotatable

Class 307: Electrical Transmission Or Interconnection Systems

This is the residual class for all subject matter, not elsewhere classified, relating to electrical transmission or interconnection systems.

Subclass 65: Plural substitute sources
Subclass 66: Storage battery or accumulator