Patent |
Priority |
Assignee |
Title |
3871557, |
|
|
|
3972038, |
Mar 28 1975 |
|
Accelerometer telemetry system |
3974491, |
Jul 22 1974 |
SmithKline Beckman Corporation |
Load signaling device for a patient's foot |
4258320, |
Nov 03 1972 |
SCHONSTEDT INSTRUMENT COMPANY LLC |
Apparatus and method employing foam sleeves for supporting magnetic sensors in a tubular housing |
4387340, |
Jul 31 1980 |
Metrotech, Inc. |
Apparatus for determining the distance to a concealed conductive object which is radiating an alternating current signal |
4388592, |
Jun 24 1980 |
Schonstedt Instrument Company |
Multiaxis magnetometer apparatus with orthogonally disposed rectangular housings for mounting separate sensor assemblies |
4520317, |
Jul 31 1980 |
Metrotech, Inc. |
Apparatus including a pair of automatic gain controlled amplifiers for determining the lateral direction to a concealed conductive object |
4536710, |
Aug 10 1982 |
Schonstedt Instrument Company |
Magnetic detector instrument with board-mounted sensor assembly |
4539522, |
Jun 23 1982 |
Schonstedt Instrument Company |
Magnetic detector apparatus with liquid-supported, conductive, sensor-support tube |
4590425, |
Jun 23 1982 |
Schonstedt Instrument Company |
Magnetic detector apparatus with excitation conductors connected in series via sensor housing |
4639674, |
Apr 11 1983 |
Schonstedt Instrument Company |
Apparatus and method employing extraneous field compensation for locating current-carrying objects |
4712094, |
May 29 1986 |
Minnesota Mining and Manufacturing Company |
Self-orienting passive marker structure |
4747207, |
Dec 01 1986 |
Schonstedt Instrument Company |
Manufacture of magnetic cores from blanks of magnetically permeable sheet material |
4803773, |
Aug 01 1986 |
SCHONSTEDT INSTRUMENT COMPANY LLC |
Method of making magnetic cores |
4818944, |
May 06 1987 |
Schonstedt Instrument Company |
Magnetic locating and tracing system and method using dual-antenna transmitter to distinguish between concealed adjacent objects |
4839623, |
Dec 01 1986 |
Schonstedt Instrument Company |
Magnetic core blanks of magnetically permeable sheet material |
4839624, |
Aug 01 1986 |
SCHONSTEDT INSTRUMENT COMPANY LLC |
Magnetic cores |
4873533, |
Nov 18 1986 |
Minnesota Mining and Manufacturing Company |
Marker for locating a buried object |
5001430, |
Jun 05 1989 |
Heath Consultants, Inc. |
Apparatus for locating concealed electrical conductors |
5006806, |
Mar 15 1989 |
SCHONSTEDT INSTRUMENT COMPANY LLC |
Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as burried fiber optic cables |
5014008, |
Jun 28 1988 |
Radiodetection Limited |
System for detecting the location and orientation of a temporarily inaccessible object |
5017873, |
Oct 30 1989 |
SCHONSTEDT INSTRUMENT COMPANY LLC |
Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables |
5025150, |
Oct 14 1988 |
WASHINGTON GROUP INTERNATIONAL, INC , AN OHIO CORPORATION |
Site survey method and apparatus |
5043666, |
Apr 16 1990 |
Metrotech Corporation |
Self-calibrating electromagnetic field sensor for locating buried conduits |
5045368, |
Sep 18 1989 |
Minnesota Mining and Manufacturing Company |
Self-dispensing spaced electronic markers |
5065098, |
Jun 18 1990 |
CHARLES MACHINE WORKS, INC , THE |
System for locating concealed underground objects using digital filtering |
5093622, |
Mar 17 1989 |
Minnesota Mining and Manufacturing Company |
Method and apparatus for determining direction to and position of an underground conductor |
5097211, |
May 25 1990 |
SCHONSTEDT INSTRUMENT COMPANY LLC |
Magnetic detection appartaus with plastic housing and sound-transmissive handle |
5114517, |
Mar 15 1989 |
SCHONSTEDT INSTRUMENT COMPANY LLC |
Methods, apparatus and devices relating to magnetic markers for elongated hidden objects |
5122750, |
Mar 15 1989 |
SCHONSTEDT INSTRUMENT COMPANY LLC |
Methods employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables |
5136245, |
May 25 1990 |
SCHONSTEDT INSTRUMENT COMPANY LLC |
Magnetic detection apparatus with sensors mounted on channel or angle cantilever support |
5138761, |
May 25 1990 |
SCHONSTEDT INSTRUMENT COMPANY LLC |
Method of manufacturing magnetic detection apparatus |
5173139, |
Mar 15 1989 |
SCHONSTEDT INSTRUMENT COMPANY LLC |
Method for providing magnetic markers on elongated hidden objects |
5206065, |
Mar 15 1989 |
SCHONSTEDT INSTRUMENT COMPANY LLC |
Methods, apparatus and devices relating to magnetic markers for elongated hidden objects |
5214757, |
Aug 07 1990 |
MICHAEL BAKER JR , INC |
Interactive automated mapping system |
5231355, |
Jun 18 1990 |
CHARLES MACHINE WORKS, INC , THE |
Locator transmitter having an automatically tuned antenna |
5239290, |
Mar 25 1992 |
SCHONSTEDT INSTRUMENT COMPANY LLC |
Magnetic cores for saturable core measuring devices and methods of manufacturing such cores |
5260659, |
Feb 13 1989 |
Radiodetection Limited |
Method and apparatus for tracing conductors using an alternating signal having two components related in frequency and phase |
5264795, |
Jun 18 1990 |
The Charles Machine Works, Inc.; CHARLES MACHINE WORKS, INC , THE |
System transmitting and receiving digital and analog information for use in locating concealed conductors |
5361029, |
Jun 18 1990 |
The Charles Machine Works, Inc. |
System for locating multiple concealed underground objects |
5365163, |
Sep 29 1992 |
Minnesota Mining and Manufacturing Company |
Sensor array for circuit tracer |
5373298, |
Oct 08 1992 |
Alcatel Espace |
Method of estimating the error in the calculation of the position of a mobile by a GPS receiver, and GPS receiver for implementing this method |
5430379, |
Aug 27 1993 |
Minnesota Mining and Manufacturing Company |
Conductor locator adapter for electronic markers |
5444364, |
Sep 29 1992 |
Minnesota Mining and Manufacturing Company |
Circuit tracer having an electric field sensor, a differential electric field sensor and an inductive sensor |
5471143, |
Jan 29 1993 |
Minnesota Mining and Manufacturing Co.; Minnesota Mining and Manufacturing |
Apparatus for locating buried conductors using phase-shifted signals |
5519329, |
Sep 29 1992 |
Minnesota Mining and Manufacturing Company |
Sensor for circuit tracer |
5530357, |
Jun 29 1994 |
Minnesota Mining and Manufacturing Company |
Sonde with replaceable electronics and a rotatable, tubular inner shell wherein a battery is located |
5543931, |
May 18 1993 |
Goldstar Co., Ltd. |
Apparatus for and method of reproducing digital video signals at a varied speed |
5576973, |
Apr 18 1994 |
Radiodetection Limited |
Apparatus and method for obtaining geographical positional data for an object located underground |
5621325, |
May 16 1995 |
The Charles Machine Works, Inc. |
Avoiding ghosting artifacts during surface location of subsurface transmitters |
5629626, |
Jul 12 1994 |
Leidos, Inc |
Apparatus and method for measuring buried ferromagnetic objects with a high accuracy of position and in synchronization with a sync pulse provided by a global positioning system |
5644237, |
Sep 27 1995 |
AT&T |
Method and apparatus for precisely locating a buried utility conveyance |
5739785, |
Mar 04 1993 |
Trimble Navigation Limited |
Location and generation of high accuracy survey control marks using satellites |
5751289, |
Oct 01 1992 |
University Corporation for Atmospheric Research |
Virtual reality imaging system with image replay |
5764127, |
Mar 17 1995 |
Radiodetection Limited |
Inductive transmitters for conductor location |
5769370, |
Dec 29 1995 |
TOPCON POSITION SYSTEMS, INC ; Topcon GPS LLC |
Knock-down satellite positioning system antenna supporting tripod |
5828219, |
Aug 22 1996 |
Radiodetection, Ltd. |
Method of detecting faults in the insulation layer of an insulated concealed conductor |
5916300, |
Jul 18 1997 |
Trimble Navigation Limited |
Automatic event recognition to trigger recording changes |
5917325, |
Mar 21 1995 |
Radiodetection Limited |
Method for locating an inaccessible object having a magnetic field generating solenoid |
5920194, |
May 06 1994 |
Radiodetection Limited |
Device for locating objects that emit electromagnetic signals |
5955667, |
Oct 11 1996 |
Garmin Ltd |
Motion analysis system |
6026135, |
Apr 04 1997 |
Qsine Corporation Limited |
Multisensor vehicle-mounted mine detector |
6031454, |
Nov 13 1997 |
PEETERS, JOHN P |
Worker-specific exposure monitor and method for surveillance of workers |
6032530, |
Apr 29 1994 |
Advantedge Systems Inc.; Advantedge Systems Inc |
Biofeedback system for sensing body motion and flexure |
6061632, |
Aug 18 1997 |
Trimble Navigation Limited |
Receiver with seamless correction capacity |
6074693, |
Feb 22 1999 |
Trimble Navigation Limited |
Global positioning system controlled paint sprayer |
6107801, |
Oct 08 1997 |
Radiodetection Limited |
Locating an inaccessible object by detecting horizontal and vertical components of a magnetic field |
6127827, |
Jul 22 1994 |
Radiodetection Limited |
Method of identifying a buried cable by applying a low frequency signal to the cable and detecting the resultant field |
6130539, |
Aug 19 1998 |
Metrotech Corporation |
Automatic gain control for a line locator |
6140819, |
May 26 1998 |
Heath Consultants, Inc. |
Continuous-depth-indicating underground pipe and cable locator |
6169958, |
Apr 09 1999 |
Mitsubishi Electric & Electronics USA, Inc |
Ionospheric correction for single frequency GPS receivers using three satellites |
6188777, |
Aug 01 1997 |
Intel Corporation |
Method and apparatus for personnel detection and tracking |
6206282, |
Mar 03 1998 |
CASCADE ENGINEERING, INC |
RF embedded identification device |
6234218, |
Oct 13 1999 |
X-Pert Paint Mixing Systems, Inc.; X-PERT PAINT MIXING SYSTEMS, INC |
Semi-automated automotive paint dispensing system |
6268731, |
Mar 07 1997 |
Radiodetection Limited |
Locator of electrically conductive objects |
6297736, |
Jul 16 1997 |
Radiodetection Limited |
Locating concealed conductors |
6299934, |
Feb 22 1999 |
Trimble Navigation Limited |
Global positioning system controlled paint sprayer |
6308565, |
Mar 03 1998 |
Impulse Technology LTD |
System and method for tracking and assessing movement skills in multidimensional space |
6356082, |
May 26 2000 |
SCHONSTEDT INSTRUMENTS CO |
Utility locator radio link |
6363320, |
Aug 18 2000 |
GeoSpatial Technologies Inc. |
Thin-client real-time interpretive object tracking system |
6375038, |
Oct 28 1999 |
DAANSEN U S A INC ; DAANSEN USA, INC A CORP OF NEW HAMPSHIRE |
Dispenser having timing means, multisensory output and means of tracking usage number |
6378220, |
Apr 11 2000 |
FCA US LLC |
Measuring tool usable with a paint applicator |
6390336, |
Apr 20 2001 |
STANLEY WORKS, THE |
Spray wand with stand |
6407550, |
Aug 19 1998 |
Metrotech Corporation |
Line locator with accurate horizontal displacement detection |
6411094, |
Dec 30 1997 |
The Charles Machine Works, Inc. |
System and method for determining orientation to an underground object |
6437708, |
Oct 21 1999 |
GEOID EXPLORATION LTD ; TOP LINK LTD |
System and method of land marking |
6459266, |
Jan 26 1999 |
Radiodetection Limited |
Sonde locator |
6476708, |
Mar 20 1998 |
ASSA ABLOY AB |
Detection of an RFID device by an RF reader unit operating in a reduced power state |
6490524, |
Mar 07 2000 |
Trimble Navigation Limited |
Post-processing of NMEA data |
6549011, |
Dec 20 2000 |
Radiodetection Limited |
Conductor tracing system |
6552548, |
Jun 15 1998 |
Radiodetection Limited |
Detecting underground objects |
6585133, |
Oct 21 1999 |
GEOID EXPLORATION LTD ; TOP LINK LTD |
Land marking device |
6600420, |
Aug 14 1998 |
3M Innovative Properties Company |
Application for a radio frequency identification system |
6617856, |
Feb 15 2002 |
Radiodetection Limited |
Electronic marker locator system and method |
6633163, |
Apr 28 1999 |
Radiodetection Limited |
Apparatus and method for detecting an underground cable while operating a piece of machinery |
6650798, |
Sep 21 1998 |
Radiodetection Limited |
Identification and location of fiber optic cables |
6674276, |
Apr 01 1999 |
Actuant Corporation |
Surface object locator with level indicator and scribe tip |
6710741, |
May 31 2002 |
PROSTAR GEOCORP, INC |
Method and apparatus for determining positioning relative to utility lines |
6717392, |
May 30 2000 |
Radiodetection Limited |
Signal generator |
6723375, |
Mar 30 2000 |
Merlin Technology, Inc |
Portable locator including a ground marking arrangement |
6728662, |
Feb 15 2002 |
Radiodetection Limited |
Method and system for remotely servicing a detection device |
6751554, |
Mar 06 2003 |
AT&T Corp |
Locating dig alerts on the map by choosing an area on the map |
6777923, |
Feb 19 2002 |
RADIODECTION LIMITED |
System and method for detecting a concealed current carrying conductor |
6778128, |
Jan 17 2003 |
ECHORFID, LLC |
Method of locating underground utility lines and an underground utility line |
6798379, |
Feb 03 2003 |
PROSTAR GEOCORP, INC |
Method of dynamically tracking a location of one or more selected utilities |
6799116, |
Dec 15 2000 |
Trimble Navigation Limited |
GPS correction methods, apparatus and signals |
6815953, |
Jul 03 2002 |
Metrotech Corporation |
Detecting field distortion in underground line location |
6819109, |
Jan 23 2003 |
Schonstedt Instrument Company |
Magnetic detector extendable wand |
6825775, |
Aug 01 2001 |
Radiodetection Limited |
Method and system for reducing interference |
6825793, |
Mar 01 2002 |
ENSCO, INC. |
System and method for detecting and locating underground objects |
6833811, |
Oct 07 2002 |
STINGRAY IP SOLUTIONS LLC |
System and method for highly accurate real time tracking and location in three dimensions |
6836231, |
May 30 2001 |
Radiodetection Limited |
Signal generator |
6845171, |
Nov 19 2001 |
Microsoft Technology Licensing, LLC |
Automatic sketch generation |
6850161, |
Oct 23 2000 |
Verizon Patent and Licensing Inc |
Systems and methods for identifying and mapping conduit location |
6850843, |
Sep 06 2001 |
SMITH, ROBERT E ; VOGT, JURGEN NMI |
Accident evidence recording method |
6853303, |
Nov 21 2002 |
TERRESTRIAL COMMS LLC |
RFID system and method for ensuring personnel safety |
6865484, |
Apr 11 2001 |
Kabushiki Kaisha Topcon |
Satellite position measurement system |
6898550, |
Oct 02 1997 |
NIKE, Inc |
Monitoring activity of a user in locomotion on foot |
6904361, |
Jan 06 2004 |
Bonar & Associates, Inc. |
Municipal utility mapping system and method |
6954071, |
Mar 24 2000 |
Radiodetection Limited |
Pipeline mapping and interrupter therefor |
6956524, |
Feb 03 2003 |
PROSTAR GEOCORP, INC |
Method of dynamically tracking a location of one or more selected utilities |
6958690, |
Jun 10 2003 |
AT&T Corp. |
Method and apparatus for managing dig alerts in a network system |
6968296, |
Apr 04 2003 |
Radiodetection Limited |
Cable detector with decimating filter and filtering method |
6975942, |
Jun 14 2000 |
Vermeer Manufacturing Company |
Underground utility detection system and method |
6977508, |
Mar 31 2003 |
Radiodetection Limited |
Cable detection apparatus and method |
6992584, |
Jan 23 2001 |
u-blox AG |
Mobile device comprising a GPS receiver |
6993088, |
Aug 01 2001 |
Radiodetection Limited |
Encoding scheme for producing magnetic field signals having desired spectral characteristics |
7009519, |
Nov 21 2002 |
S C JOHNSON & SON, INC |
Product dispensing controlled by RFID tags |
7038454, |
Dec 30 1997 |
The Charles Machine Works, Inc. |
System and method for detecting an underground object using magnetic field sensing |
7042358, |
Aug 09 1999 |
Round Rock Research, LLC |
RFID material tracking method and apparatus |
7053789, |
Jul 31 2003 |
Radiodetection Limited |
Underground object locator |
7057383, |
May 06 2004 |
METROTECH CORPORATION, INC |
Method for decoupling interference due to bleedover in metallic pipe and cable locators |
7062414, |
Jul 18 2003 |
Metrotech Corporation |
Method and apparatus for digital detection of electromagnetic signal strength and signal direction in metallic pipes and cables |
7079591, |
Aug 01 2001 |
Radiodetection Limited |
Method and system for recovering information from a magnetic field signal usable for locating an underground object |
7091872, |
Jul 01 2002 |
Metrotech Corporation |
Controlled power source for underground line location |
7113124, |
Nov 25 2003 |
METROTECH CORPORATION, INC |
Centerline and depth locating method for non-metallic buried utility lines |
7116244, |
Aug 01 2001 |
Radiodetection Limited |
Method and system for producing a magnetic field signal usable for locating an underground object |
7120564, |
Apr 03 2003 |
Metrotech Corporation |
Buried line locator with integral position sensing |
7235980, |
Mar 31 2003 |
Radiodetection Limited |
Cable detection apparatus and method |
7285958, |
Jan 15 2004 |
METROTECH CORPORATION, INC |
Method and apparatus for digital detection of electronic markers using frequency adaptation |
7304480, |
Jun 20 2005 |
Radiodetection Limited |
Radio mode selectivity block for a detector for detecting a buried current carrying conductor |
7310584, |
Oct 14 2005 |
RADIODETECTION LTD |
Enhanced sonde recognition |
7319387, |
Mar 17 2004 |
3M Innovative Properties Company |
GPS interface for locating device |
7331340, |
Mar 04 2003 |
IVAX Corporation |
Medicament dispensing device with a display indicative of the state of an internal medicament reservoir |
7336078, |
Oct 04 2003 |
SEEK TECH, INC |
Multi-sensor mapping omnidirectional sonde and line locators |
7339379, |
Jun 20 2005 |
Radiodetection Limited |
Method of and apparatus for determining if a buried current carrying conductor is buried above predetermined minimum depth |
7342537, |
Jun 20 2005 |
Radiodetection Limited |
Method of and apparatus for detecting a current carrying conductor |
7356421, |
Apr 06 2005 |
METROTECH CORPORATION, INC |
Precise location of buried metallic pipes and cables in the presence of signal distortion |
7358738, |
Jan 15 2004 |
Metrotech Corporation, Inc. |
Method and apparatus for digital detection of electronic markers using frequency adaptation |
7372247, |
Apr 03 2003 |
TRI-SITE, INC |
Apparatus and method for locating and marking an underground utility |
7372276, |
Feb 16 2005 |
GOLDAK, INC |
Digital locating system and device for underground object detection |
7396177, |
Oct 25 1999 |
Silverbrook Research Pty LTD |
Universal pen with position or motion sensing |
7396178, |
Oct 20 2000 |
Silverbrook Research Pty LTD |
Universal pen with optical, position and/or motion sensors |
7403012, |
Jun 20 2005 |
Radiodetection Limited |
Detector for detecting a buried current carrying conductor using electromagnetic radiation of predetermined frequencies |
7413363, |
Oct 25 1999 |
Silverbrook Research Pty LTD |
Electronically controllable pen comprising a force switch |
7482973, |
Jul 20 2004 |
PROSTAR GEOCORP, INC |
Precision GPS driven utility asset management and utility damage prevention system and method |
7500583, |
Dec 02 2004 |
ENOCH COX AND JANICE E COX, OR THEIR SUCCESSOR, CO-TRUSTEES OF THE COX JOINT REVOCABLE TRUST |
Attachment for a surveyor's instrument |
7640105, |
Mar 13 2007 |
Certusview Technologies, LLC |
Marking system and method with location and/or time tracking |
20010029996, |
|
|
|
20020130806, |
|
|
|
20030184300, |
|
|
|
20030196585, |
|
|
|
20040057795, |
|
|
|
20040168358, |
|
|
|
20040220731, |
|
|
|
20050040222, |
|
|
|
20050055142, |
|
|
|
20050089360, |
|
|
|
20050192727, |
|
|
|
20060026020, |
|
|
|
20060055584, |
|
|
|
20060077095, |
|
|
|
20060109131, |
|
|
|
20060244454, |
|
|
|
20060254820, |
|
|
|
20060276198, |
|
|
|
20060282280, |
|
|
|
20060285913, |
|
|
|
20060287900, |
|
|
|
20060289679, |
|
|
|
20070013379, |
|
|
|
20070018632, |
|
|
|
20070100496, |
|
|
|
20070219722, |
|
|
|
20070288195, |
|
|
|
20080125942, |
|
|
|
20080228294, |
|
|
|
20080245299, |
|
|
|
20090013928, |
|
|
|
20090085568, |
|
|
|
20090121933, |
|
|
|
20090201178, |
|
|
|
20090201311, |
|
|
|
20090202101, |
|
|
|
20090202110, |
|
|
|
20090202111, |
|
|
|
20090202112, |
|
|
|
20090204238, |
|
|
|
20090204466, |
|
|
|
20090204614, |
|
|
|
20090204625, |
|
|
|
20090207019, |
|
|
|
20090208642, |
|
|
|
20090210098, |
|
|
|
20090210284, |
|
|
|
20090210285, |
|
|
|
20090210297, |
|
|
|
20090210298, |
|
|
|
20090237408, |
|
|
|
20090238414, |
|
|
|
20090238415, |
|
|
|
20090238416, |
|
|
|
20090238417, |
|
|
|
20090241045, |
|
|
|
20090241046, |
|
|
|
20090324815, |
|
|
|
20090327024, |
|
|
|
20100006667, |
|
|
|
20100010862, |
|
|
|
20100010863, |
|
|
|
20100010882, |
|
|
|
20100010883, |
|
|
|
D319383, |
Sep 29 1988 |
AB Lectrostatic |
Holder for attaching a smoke exhausting nozzle to soldering irons |
EP1852365, |
|
|
|
WO2004100044, |
|
|
|
WO2004102242, |
|
|
|
WO2005052627, |
|
|
|
WO2006015310, |
|
|
|
WO2006136776, |
|
|
|
WO2006136777, |
|
|
|
WO2007067898, |
|
|
|
WO9112119, |
|
|
|
WO9424584, |
|
|
|
WO9629572, |
|
|
|
WO9854600, |
|
|
|
WO9854601, |
|
|
|
WO9900679, |
|
|
|