Assignee
METROTECH CORP
US·29 granted patents·4 pending applications·731 citations·filing 1990–2025
Top patents by PatentIndex Score
33 records- 0193US7062414B2Method and apparatus for digital detection of electromagnetic signal strength and signal direction in metallic pipes and cablesMETROTECH CORP·Filed 2003·Granted Jun 13, 2006·95 cites·49 claims
- 0292US5043666ASelf-calibrating electromagnetic field sensor for locating buried conduitsMETROTECH CORP·Filed 1990·Granted Aug 27, 1991·108 cites·9 claims
- 0390US7091872B1Controlled power source for underground line locationMETROTECH CORP·Filed 2002·Granted Aug 15, 2006·76 cites·31 claims
- 0488US7120564B2Buried line locator with integral position sensingMETROTECH CORP·Filed 2003·Granted Oct 10, 2006·108 cites·49 claims
- 0588US6407550B1Line locator with accurate horizontal displacement detectionMETROTECH CORP·Filed 1998·Granted Jun 18, 2002·107 cites·26 claims
- 0682US6815953B1Detecting field distortion in underground line locationMETROTECH CORP·Filed 2002·Granted Nov 9, 2004·67 cites·13 claims
- 0780US7203322B1Acoustic detector with noise cancellationMETROTECH CORP·Filed 2003·Granted Apr 10, 2007·33 cites·27 claims
- 0880US6130539AAutomatic gain control for a line locatorMETROTECH CORP·Filed 1998·Granted Oct 10, 2000·73 cites·11 claims
- 0979US7137308B2Sliding pipe plugMETROTECH CORP·Filed 2003·Granted Nov 21, 2006·22 cites·35 claims
- 1078US10094947B2System and method for locating underground lines using antenna and positioning informationMETROTECH CORP·Filed 2016·Granted Oct 9, 2018·2 cites·9 claims
- 1177US10768330B2System and method for locating a marker using a locator with multiple transmittersMETROTECH CORP·Filed 2016·Granted Sep 8, 2020·2 cites·13 claims
- 1274US12455388B2Underground line locator system with real time kinematic and global satellite positioningMETROTECH CORP·Filed 2022·Granted Oct 28, 2025·0 cites·21 claims
- 1372US10732313B2System and method for locating underground lines using motion based responsivenessMETROTECH CORP·Filed 2016·Granted Aug 4, 2020·4 cites·13 claims
- 1468USD475936SLine locatorMETROTECH CORP·Filed 2002·Granted Jun 17, 2003·18 cites·1 claims
- 1566US2025370158A1Accurate Data Logging in a Cable Locating InstrumentMETROTECH CORP·Filed 2025·Application pending·0 cites
- 1665US11474262B2Underground line locator system with real time kinematic and global satellite positioningMETROTECH CORP·Filed 2020·Granted Oct 18, 2022·0 cites·18 claims
- 1764US9473203B2Signal select in underground line locationMETROTECH CORP·Filed 2013·Granted Oct 18, 2016·2 cites·14 claims
- 1861US2024345274A1Isomorphic cloud data transfer from a locating instrumentMETROTECH CORP·Filed 2024·Application pending·0 cites
- 1960US10162039B2Systems and methods for object detectionMETROTECH CORP·Filed 2017·Granted Dec 25, 2018·0 cites·20 claims
- 2059US12537560B2Data encoding in a low frequency magnetic fieldMETROTECH CORP·Filed 2024·Granted Jan 27, 2026·0 cites·48 claims
- 2159US10833901B2Signal select in underground line locationMETROTECH CORP·Filed 2016·Granted Nov 10, 2020·1 cites·18 claims
- 2259US2025237688A1Cable Locating System with Data EncodingMETROTECH CORP·Filed 2024·Application pending·0 cites
- 2358US7612682B2Locator with removable antenna portionMETROTECH CORP·Filed 2006·Granted Nov 3, 2009·6 cites·9 claims
- 2457US2025277912A1Algorithm and Method to Calculate Trajectory Lengths of Buried CablesMETROTECH CORP·Filed 2025·Application pending·0 cites
- 2556US10832455B2System and method for locating underground lines using a view-in-the-ground indicatorMETROTECH CORP·Filed 2016·Granted Nov 10, 2020·2 cites·12 claims
- 2654US9869744B2Locator self-testMETROTECH CORP·Filed 2015·Granted Jan 16, 2018·0 cites·14 claims
- 2748US10310130B2Cable detection apparatus with a comb filterMETROTECH CORP·Filed 2015·Granted Jun 4, 2019·0 cites·12 claims
- 2842US9877152B2Auto-locate operationMETROTECH CORP·Filed 2017·Granted Jan 23, 2018·0 cites·11 claims
- 2940US10578856B2Camera skidMETROTECH CORP·Filed 2015·Granted Mar 3, 2020·0 cites·15 claims
- 3039USD488725STransmitter for a line locating systemMETROTECH CORP·Filed 2002·Granted Apr 20, 2004·5 cites·1 claims
- 3137US10338263B2Signal processing for a cable locating instrumentMETROTECH CORP·Filed 2015·Granted Jul 2, 2019·0 cites·7 claims
- 3236US11336013B2Antenna for underground line locationMETROTECH CORP·Filed 2016·Granted May 17, 2022·0 cites·9 claims
- 3332US10063220B2Signal generator with multiple outputsMETROTECH CORP·Filed 2016·Granted Aug 28, 2018·0 cites·18 claims
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