Inventor · disambiguated record
Albert W. Chau
Also filed as: CHAU ALBERT · CHAU ALBERT W
183 granted patents·12 pending applications·2,942 citations·filing 1983–2025
99Inventor score
Top patents by PatentIndex Score
195 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
- 0398US11598198B2Advanced underground homing system, apparatus and methodMERLIN TECHNOLOGY INC·Filed 2021·Granted Mar 7, 2023·5 cites·15 claims
- 0498US6496008B1Flux plane locating in an underground drilling systemDIGITAL CONTROL INC·Filed 2000·Granted Dec 17, 2002·199 cites·16 claims
- 0597US8695727B2Drill string adapter and method for inground signal couplingCHAU ALBERT W·Filed 2011·Granted Apr 15, 2014·39 cites·26 claims
- 0697US7859249B2Tracking positions of personnel, vehicles, and inanimate objectsMERLIN TECHNOLOGY INC·Filed 2010·Granted Dec 28, 2010·17 cites·5 claims
- 0797US6737867B2Locating arrangement and method using boring tool and cable locating signalsMERLIN TECHNOLOGY INC·Filed 2001·Granted May 18, 2004·79 cites·45 claims
- 0896US9274243B2Advanced drill string communication system, components and methodsMERLIN TECHNOLOGY INC·Filed 2013·Granted Mar 1, 2016·29 cites·10 claims
- 0996US8381836B2Advanced underground homing system, apparatus and methodMERLIN TECHNOLOGY INC·Filed 2010·Granted Feb 26, 2013·17 cites·28 claims
- 1096US7898494B2Locating technique and apparatus using an approximated dipole signalMERLIN TECHNOLOGY INC·Filed 2008·Granted Mar 1, 2011·33 cites·12 claims
- 1196US5585726AElectronic guidance system and method for locating a discrete in-ground boring deviceUTILX CORP·Filed 1995·Granted Dec 17, 1996·250 cites·24 claims
- 1296US4881083AHoming technique for an in-ground boring deviceFLOWMOLE CORP·Filed 1986·Granted Nov 14, 1989·161 cites·17 claims
- 1395US10107090B2Advanced underground homing system, apparatus and methodMERLIN TECHNOLOGY INC·Filed 2016·Granted Oct 23, 2018·7 cites·11 claims
- 1495US9000940B2Drill string inground isolator in an MWD system and associated methodCHAU ALBERT W·Filed 2012·Granted Apr 7, 2015·23 cites·113 claims
- 1595US8662200B2Sonde with integral pressure sensor and methodCHAU ALBERT W·Filed 2011·Granted Mar 4, 2014·20 cites·47 claims
- 1695US4806869AAn 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
- 1794US7775301B2Advanced steering tool system, method and apparatusMARTIN TECHNOLOGY INC·Filed 2007·Granted Aug 17, 2010·45 cites·9 claims
- 1894US7150329B2Auto-extending/retracting electrically isolated conductors in a segmented drill stringMERLIN TECHNOLOGY INC·Filed 2006·Granted Dec 19, 2006·47 cites·18 claims
- 1994US6727704B2Boring tool tracking/guiding system and method with unconstrained target location geometryMARLIN TECHNOLOGY INC·Filed 2001·Granted Apr 27, 2004·100 cites·66 claims
- 2093US12188346B2Advanced underground homing system, apparatus and methodMERLIN TECHNOLOGY INC·Filed 2023·Granted Jan 7, 2025·1 cites·8 claims
- 2193US11867057B2Advanced inground device power control and associated methodsMERLIN TECHNOLOGY INC·Filed 2022·Granted Jan 9, 2024·2 cites·20 claims
- 2293US11047896B2Portable device with electromagnetic noise measurement at multiple frequenciesMERLIN TECHNOLOGY INC·Filed 2019·Granted Jun 29, 2021·3 cites·17 claims
- 2393US9500041B2Drill string inground isolator in an MWD system and associated methodMERLIN TECHNOLOGY INC·Filed 2015·Granted Nov 22, 2016·7 cites·15 claims
- 2493US9360579B1Advanced steering tool system, method and apparatusMERLIN TECHNOLOGY INC·Filed 2016·Granted Jun 7, 2016·5 cites·5 claims
- 2593US8729901B2Measurement device and associated method for use in frequency selection for inground transmissionLAM LOC VIET·Filed 2009·Granted May 20, 2014·42 cites·40 claims
- 2693US7425829B2Tracking positions of personnel, vehicles, and inanimate objectsMERLIN TECHNOLOGY INC·Filed 2004·Granted Sep 16, 2008·51 cites·83 claims
- 2793US7151375B2Distinguishing false signals in cable locatingMARLIN TECHNOLOGY INC·Filed 2005·Granted Dec 19, 2006·25 cites·28 claims
- 2893US5070462ADevice for locating a boring machineFLOWMOLE CORP·Filed 1989·Granted Dec 3, 1991·91 cites·20 claims
- 2992US4714118ATechnique for steering and monitoring the orientation of a powered underground boring deviceFLOWMOLE CORP·Filed 1986·Granted Dec 22, 1987·131 cites·27 claims
- 3091US9291738B2Flux plane locating in an underground drilling systemMERLIN TECHNOLOGY INC·Filed 2014·Granted Mar 22, 2016·5 cites·28 claims
- 3191US7956614B2Flux plane locating in an underground drilling systemMERLIN TECHNOLOGY INC·Filed 2010·Granted Jun 7, 2011·8 cites·18 claims
- 3291US7343816B2Tension monitoring arrangement and methodMERLIN TECHNOLOGY INC·Filed 2005·Granted Mar 18, 2008·12 cites·10 claims
- 3390US10422664B2Tracking positions of personnel, vehicles, and inanimate objectsMERLIN TECHNOLOGY INC·Filed 2016·Granted Sep 24, 2019·2 cites·6 claims
- 3490US9519074B2Flux plane locating in an underground drilling systemMERLIN TECHNOLOGY INC·Filed 2016·Granted Dec 13, 2016·2 cites·22 claims
- 3590US8686731B2Tracking positions of personnel, vehicles, and inanimate objectsZELLER RUDOLF·Filed 2011·Granted Apr 1, 2014·9 cites·12 claims
- 3690US7772849B2Tracking positions of personnel, vehicles, and inanimate objectsMERLIN TECHNOLOGY INC·Filed 2009·Granted Aug 10, 2010·15 cites·24 claims
- 3790US7570060B2Tracking positions of personnel, vehicles, and inanimate objectsMERLIN TECHNOLOGY INC·Filed 2008·Granted Aug 4, 2009·15 cites·27 claims
- 3890US6655464B2Auto-extending/retracting electrically isolated conductors in a segmented drill stringMERLIN TECHNOLOGY INC·Filed 2001·Granted Dec 2, 2003·101 cites·133 claims
- 3989US12241909B2Mechanical shock resistant MEMS accelerometer arrangement, associated method, apparatus and systemMERLIN TECHNOLOGY INC·Filed 2024·Granted Mar 4, 2025·0 cites·11 claims
- 4089US9778121B2Tension monitoring arrangement and methodMERLIN TECHNOLOGY INC·Filed 2016·Granted Oct 3, 2017·3 cites·6 claims
- 4189US9507046B2Locating arrangement and method using boring tool and cable locating signalsMERLIN TECHNOLOGY INC·Filed 2016·Granted Nov 29, 2016·2 cites·5 claims
- 4289US9310507B2Tracking positions of personnel, vehicles, and inanimate objectsMERLIN TECHNOLOGY INC·Filed 2015·Granted Apr 12, 2016·2 cites·2 claims
- 4389US8680864B2Flux plane locating in an underground drilling systemBRUNE GUENTER W·Filed 2011·Granted Mar 25, 2014·6 cites·10 claims
- 4489US7578201B2Tension monitoring arrangement and methodMERLIN TECHNOLOGY INC·Filed 2008·Granted Aug 25, 2009·10 cites·26 claims
- 4588US7775121B2Tension monitoring arrangement and methodMERLIN TECHNOLOGY INC·Filed 2009·Granted Aug 17, 2010·8 cites·14 claims
- 4688US7443359B2Locating technique and apparatus using an approximated dipole signalMERLIN TECHNOLOGY INC·Filed 2007·Granted Oct 28, 2008·12 cites·16 claims
- 4788US6993981B1Tension monitoring arrangement and methodMERLIN TECHNOLOGY INC·Filed 2003·Granted Feb 7, 2006·20 cites·18 claims
- 4887US7990152B2Locating arrangement and method using boring tool and cable locating signalsMERLIN TECHNOLOGY INC·Filed 2010·Granted Aug 2, 2011·4 cites·6 claims
- 4987US7209093B2Locating technique and apparatus using an approximated dipole signalMERLIN TECHNOLOGY INC·Filed 2005·Granted Apr 24, 2007·16 cites·23 claims
- 5087US2024360752A1Advanced inground operations, system and associated apparatusMERLIN TECHNOLOGY INC·Filed 2024·Application pending·0 cites
Showing the top 50 of 195 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →