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Patent Portfolio for Sale:

Portfolio of Laser Distance Surveying Instruments Patents    

Extensive portfolio covering the use of laser for distance measuring

Overview

A leading manufacturer of laser equipment is seeking to license or divest a significant portfolio covering various aspects of using laser for distance surveying and measurements. The portfolio contains 24 US patents and 77 foreign counterparts.

The seller would like to be granted a license back.

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 139.1: Photodetection of inclination from level or vertical
Subclass 213: PHOTOMETERS
Subclass 218: Photoelectric
Subclass 27: VELOCITY OR VELOCITY/HEIGHT MEASURING
Subclass 28: With light detector (e.g., photocell)
Subclass 4.01: With photodetection
Subclass 425: With color determination by light intensity comparison
Subclass 5.01: Of pulse transit time
Subclass 5.03: Having one or more return pulse gates or windows
Subclass 5.05: Having pulse transmission trigger significance
Subclass 5.07: With specific counter type timing of returns
Subclass 5.08: Including specific counter type timing of returns
Subclass 5.1: Of CW phase delay

Class 33: Geometrical Instruments

Means for determining the characteristics and the mutual relation of points, lines, angles, surfaces, and solids, considered as having no properties but those arising from extension and difference of situation. It includes mechanically guided means for describing lines.

Subclass 227: STRAIGHT-LINE LIGHT RAY TYPE
Subclass 286: Alignment device
Subclass 290: Level (i.e., surveyors type)
Subclass 291: Self leveling

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 618: SINGLE CHANNEL SIMULTANEOUSLY TO OR FROM PLURAL CHANNELS (E.G., LIGHT DIVIDING, COMBINING, OR PLURAL IMAGE FORMING, ETC.)
Subclass 643: Eyepiece
Subclass 644: Having four components
Subclass 708: Including a nonspherical surface
Subclass 831: PRISM (INCLUDING MOUNT)
Subclass 836: Roof or roof-angle

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 216: Optical or pre-photocell system
Subclass 231.1: Actuated by dynamic external physical quantity

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 191: Display photometry

Class 702: Data Processing:Measuring, Calibrating, Or Testing

This class provides for apparatus and corresponding methods wherein the data processing system or calculating computer is designed for or utilized in an environment relating to a specific or generic measurement system, a calibration or correction system, or a testing system.

Subclass 93: By another sensor

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 104: Vehicle or traffic control (e.g., auto, bus, or train)

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

Subclass 93: Vehicle speed control (e.g., cruise control)

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 29.01: Having particular beam control circuit component
Subclass 34: PARTICULAR TEMPERATURE CONTROL
Subclass 38.1: PARTICULAR COMPONENT CIRCUITRY
Subclass 38.02: For driving or controlling laser
Subclass 38.03: Switch (e.g., thyratron, etc.)