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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 342/459
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Position indicating (e.g., triangulation) > Underground object location
Description: Subject matter wherein the position of an atmosphere disturbance or nuclear detonation is determined.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8436741 Locating device May. 7, 2013
8358809 Syntactic signal recognizer and pattern recognizer Jan. 22, 2013
8269669 Method for retrieving a geographical point on the seabed Sep. 18, 2012
8144058 System and method for collecting and updating geographical data Mar. 27, 2012
8081112 System and method for collecting information related to utility assets Dec. 20, 2011
7952363 System and method for sorting detection of signal egress from a wired communication system May. 31, 2011
7821424 Determining asset location via local triangulation Oct. 26, 2010
7791502 Determining asset location via local triangulation Sep. 7, 2010
7360124 Autonomous network fault detection and management system Apr. 15, 2008
7350594 System and method for tracking and communicating with a boring tool Apr. 1, 2008
7342537 Method of and apparatus for detecting a current carrying conductor Mar. 11, 2008
7319387 GPS interface for locating device Jan. 15, 2008
7150331 System and method for tracking and communicating with a boring tool Dec. 19, 2006
6937190 Electromagnetic impulse survey apparatus and method Aug. 30, 2005
6668944 Path mapping in underground boring tool applications Dec. 30, 2003
6650293 Technique for providing conveyance locating information Nov. 18, 2003
6587079 Object location Jul. 1, 2003
6549012 Radio system for characterizing and outlining underground industrial developments and facilities Apr. 15, 2003
6538616 Cubic antenna Mar. 25, 2003
6536538 Establishing positions of locating field detectors and path mapping in underground boring tool applications Mar. 25, 2003
6457537 Mapping tool for tracking and/or guiding an underground boring tool Oct. 1, 2002
6454023 Mapping tool for tracking and/or guiding an underground boring tool Sep. 24, 2002
6377872 Apparatus and method for microwave imaging and excavation of objects Apr. 23, 2002
6364035 Establishing positions of locating field detectors and path mapping in underground boring tool applications Apr. 2, 2002
6285190 Skin depth compensation in underground boring applications Sep. 4, 2001
6147480 Detection of metal disturbance Nov. 14, 2000
6133869 Passive technique for the remote detection of buried objects Oct. 17, 2000
6095260 System, arrangements and associated methods for tracking and/or guiding an underground boring tool Aug. 1, 2000
6097189 Object locating system Aug. 1, 2000
6084412 Imaging objects in a dissipative medium by nearfield electromagnetic holography Jul. 4, 2000
6075481 Spatial position mapping technique Jun. 13, 2000
6047783 Systems, arrangements and associated methods for tracking and/or guiding an underground boring tool Apr. 11, 2000
6035951 System for tracking and/or guiding an underground boring tool Mar. 14, 2000
6023986 Magnetic flux leakage inspection tool for pipelines Feb. 15, 2000
6005518 Coaxial cable RF leakage detector Dec. 21, 1999
5895436 Vehicle tracking system using cellular network Apr. 20, 1999
5838279 Navigation and tracking system for shielded spaces Nov. 17, 1998
5767679 Geophysical prospecting apparatus utilizing pulsed electromagnetic signals and having a scanned four-cycle transmitter Jun. 16, 1998
5339088 Method and apparatus for measurement of direction Aug. 16, 1994
5334986 Device for determining the position of a vehicle Aug. 2, 1994
5307272 Minefield reconnaissance and detector system Apr. 26, 1994
5294937 Cable leakage monitoring system Mar. 15, 1994
4992786 Electrical conductor detector Feb. 12, 1991
4896116 Pulse radar method and apparatus for detecting an object Jan. 23, 1990
4881083 Homing technique for an in-ground boring device Nov. 14, 1989
4812850 Method and apparatus for combining waveforms Mar. 14, 1989
4806869 An above-ground arrangement for and method of locating a discrete in ground boring device Feb. 21, 1989
4746867 Antenna assembly for microwave reflection survey equipment May. 24, 1988
4733242 Submarine detection system Mar. 22, 1988
4728897 Microwave reflection survey technique for determining depth and orientation of buried objects Mar. 1, 1988

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