Inventor · disambiguated record
John E. Mercer
Also filed as: MERCER JOHN · MERCER JOHN E
275 granted patents·9 pending applications·6,506 citations·filing 1976–2025
99Inventor score
Files withMERLIN TECHNOLOGY INC184DIGITAL CONTROL INC42MERCER JOHN E20FLOWMOLE CORP8BRUNE GUENTER W7
Top patents by PatentIndex Score
284 records- 0199US7960973B2Tracking positions of personnel, vehicles, and inanimate objectsMERLIN TECHNOLOGY INC·Filed 2010·Granted Jun 14, 2011·40 cites·16 claims
- 0299US6223826B1Auto-extending/retracting electrically isolated conductors in a segmented drill stringDIGITAL CONTROL INC·Filed 1999·Granted May 1, 2001·224 cites·70 claims
- 0399US5337002ALocator device for continuously locating a dipole magnetic field transmitter and its method of operationMERCER JOHN E·Filed 1992·Granted Aug 9, 1994·353 cites·16 claims
- 0498US11598198B2Advanced underground homing system, apparatus and methodMERLIN TECHNOLOGY INC·Filed 2021·Granted Mar 7, 2023·5 cites·15 claims
- 0598US7954614B2Drive mechanism and methodMERLIN TECHNOLOGY INC·Filed 2007·Granted Jun 7, 2011·19 cites·38 claims
- 0698US6697174B2Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and methodFiled 2001·Granted Feb 24, 2004·88 cites·37 claims
- 0798US6496008B1Flux plane locating in an underground drilling systemDIGITAL CONTROL INC·Filed 2000·Granted Dec 17, 2002·199 cites·16 claims
- 0898US6417666B1Boring tool tracking system and method using magnetic locating signal and wire-in-pipe dataDIGITAL CONTROL INC·Filed 2000·Granted Jul 9, 2002·109 cites·30 claims
- 0998US6035951ASystem for tracking and/or guiding an underground boring toolDIGITAL CONTROL INC·Filed 1997·Granted Mar 14, 2000·237 cites·29 claims
- 1098US5633589ADevice and method for locating an inground object and a housing forming part of said deviceFiled 1995·Granted May 27, 1997·215 cites·18 claims
- 1197US7859249B2Tracking positions of personnel, vehicles, and inanimate objectsMERLIN TECHNOLOGY INC·Filed 2010·Granted Dec 28, 2010·17 cites·5 claims
- 1297US6737867B2Locating arrangement and method using boring tool and cable locating signalsMERLIN TECHNOLOGY INC·Filed 2001·Granted May 18, 2004·79 cites·45 claims
- 1396US9739140B2Communication protocol in directional drilling system, apparatus and method utilizing multi-bit data symbol transmissionMERLIN TECHNOLOGY INC·Filed 2015·Granted Aug 22, 2017·13 cites·69 claims
- 1496US8381836B2Advanced underground homing system, apparatus and methodMERLIN TECHNOLOGY INC·Filed 2010·Granted Feb 26, 2013·17 cites·28 claims
- 1596US7898494B2Locating technique and apparatus using an approximated dipole signalMERLIN TECHNOLOGY INC·Filed 2008·Granted Mar 1, 2011·33 cites·12 claims
- 1696US6756783B2Multi-frequency boring tool locating system and methodMERLIN TECHNOLOGY INC·Filed 2001·Granted Jun 29, 2004·76 cites·43 claims
- 1796US4881083AHoming technique for an in-ground boring deviceFLOWMOLE CORP·Filed 1986·Granted Nov 14, 1989·161 cites·17 claims
- 1895US10107090B2Advanced underground homing system, apparatus and methodMERLIN TECHNOLOGY INC·Filed 2016·Granted Oct 23, 2018·7 cites·11 claims
- 1995US8360369B2Emergency collective actuator and method for a helicopterMERLIN TECHNOLOGY INC·Filed 2010·Granted Jan 29, 2013·24 cites·26 claims
- 2095US7165632B2Boring tool tracking fundamentally based on drill string length, pitch and rollMERLIN TECHNOLOGY INC·Filed 2005·Granted Jan 23, 2007·28 cites·43 claims
- 2195US6868921B2Boring tool tracking fundamentally based on drill string length, pitch and rollMERLIN TECHNOLOGY INC·Filed 2003·Granted Mar 22, 2005·69 cites·125 claims
- 2295US6279668B1Boring tool control using remote locator including a command generation arrangement and methodDIGITAL CONTROL CORP·Filed 2000·Granted Aug 28, 2001·100 cites·19 claims
- 2395US5767678APosition and orientation locator/monitorDIGITAL CONTROL INC·Filed 1996·Granted Jun 16, 1998·123 cites·32 claims
- 2495US4806869AAn above-ground arrangement for and method of locating a discrete in ground boring deviceFLOW IND INC·Filed 1986·Granted Feb 21, 1989·152 cites·19 claims
- 2594US9789958B2Emergency collective actuator and method for a helicopterMERLIN TECHNOLOGY INC·Filed 2016·Granted Oct 17, 2017·7 cites·19 claims
- 2694US8910909B2Emergency collective actuator and method for a helicopterMERLIN TECHNOLOGY INC·Filed 2014·Granted Dec 16, 2014·14 cites·20 claims
- 2794US7775301B2Advanced steering tool system, method and apparatusMARTIN TECHNOLOGY INC·Filed 2007·Granted Aug 17, 2010·45 cites·9 claims
- 2894US7724404B2Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and methodMERCER JOHN E·Filed 2007·Granted May 25, 2010·14 cites·11 claims
- 2994US6727704B2Boring tool tracking/guiding system and method with unconstrained target location geometryMARLIN TECHNOLOGY INC·Filed 2001·Granted Apr 27, 2004·100 cites·66 claims
- 3094US6344904B1Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and methodFiled 1998·Granted Feb 5, 2002·106 cites·58 claims
- 3194US6079506ABoring tool control using remote locatorDIGITAL CONTROL INC·Filed 1998·Granted Jun 27, 2000·113 cites·39 claims
- 3294US5698981ATechnique for establishing at least a portion of an underground path of a boring toolDIGITAL CONTROL INC·Filed 1996·Granted Dec 16, 1997·144 cites·19 claims
- 3394US4435902AArticulated boom water jet cutting apparatusFLOW IND INC·Filed 1980·Granted Mar 13, 1984·120 cites·11 claims
- 3493US12188346B2Advanced underground homing system, apparatus and methodMERLIN TECHNOLOGY INC·Filed 2023·Granted Jan 7, 2025·1 cites·8 claims
- 3593US9511856B2Emergency collective actuator and method for a helicopterMERLIN TECHNOLOGY INC·Filed 2014·Granted Dec 6, 2016·11 cites·18 claims
- 3693US9360579B1Advanced steering tool system, method and apparatusMERLIN TECHNOLOGY INC·Filed 2016·Granted Jun 7, 2016·5 cites·5 claims
- 3793US8651425B2Emergency collective actuator and method for a helicopterMERCER JOHN E·Filed 2012·Granted Feb 18, 2014·14 cites·24 claims
- 3893US7973982B2Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and methodMERCER JOHN E·Filed 2010·Granted Jul 5, 2011·9 cites·11 claims
- 3993US7967080B2Boring tool tracking fundamentally based on drill string length, pitch and rollMERLIN TECHNOLOGY INC·Filed 2010·Granted Jun 28, 2011·11 cites·2 claims
- 4093US7495445B2Flux orientation locating in a drilling systemMERLIN TECHNOLOGY INC·Filed 2007·Granted Feb 24, 2009·21 cites·18 claims
- 4193US7425829B2Tracking positions of personnel, vehicles, and inanimate objectsMERLIN TECHNOLOGY INC·Filed 2004·Granted Sep 16, 2008·51 cites·83 claims
- 4293US7151375B2Distinguishing false signals in cable locatingMARLIN TECHNOLOGY INC·Filed 2005·Granted Dec 19, 2006·25 cites·28 claims
- 4392US9810053B2Boring tool control using remote locatorMERLIN TECHNOLOGY INC·Filed 2016·Granted Nov 7, 2017·4 cites·13 claims
- 4492US8766752B2Magnetic biasing apparatusMERLIN TECHNOLOGY INC·Filed 2013·Granted Jul 1, 2014·5 cites·17 claims
- 4592US6285190B1Skin depth compensation in underground boring applicationsDIGITAL CONTROL INC·Filed 1999·Granted Sep 4, 2001·137 cites·44 claims
- 4692US6250402B1Establishing positions of locating field detectors and path mappings in underground boring tool applicationsDIGITAL CONTROL INC·Filed 1999·Granted Jun 26, 2001·95 cites·10 claims
- 4792US6232780B1Underground locating using a locating signal transmitter configured with a single antennaDIGITAL CONTROL INC·Filed 2000·Granted May 15, 2001·67 cites·2 claims
- 4892US5444382APosition and orientation locator/monitorDIGITAL CONTROL INC·Filed 1994·Granted Aug 22, 1995·70 cites·6 claims
- 4992US4714118ATechnique for steering and monitoring the orientation of a powered underground boring deviceFLOWMOLE CORP·Filed 1986·Granted Dec 22, 1987·131 cites·27 claims
- 5092US4674579AMethod and apparatus for installment of underground utilitiesFLOWMOLE CORP·Filed 1985·Granted Jun 23, 1987·180 cites·9 claims
Showing the top 50 of 284 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →