Inventor · disambiguated record
Louis W. Erath
Also filed as: ERATH LOUIS · ERATH LOUIS W
21 granted patents·1 pending application·595 citations·filing 1976–2006
96Inventor score
Files withSYNTRON INC9GEOSENSOR CORP5ERATH LOUIS W2ERATH YOUNG INSTR COMPANY INC1GAS ALARM SERVICE INC1
Top patents by PatentIndex Score
22 records- 0189US4099117AMethod and apparatus for measuring the quality of insulation on a buried pipeline and the quantity of metal oxide present at breaks in the insulationGAUT DICK·Filed 1976·Granted Jul 4, 1978·49 cites·10 claims
- 0277US6853604B2Solid marine seismic cableSERCEL INC·Filed 2002·Granted Feb 8, 2005·41 cites·20 claims
- 0377US6160762AOptical sensorGEOSENSOR CORP·Filed 1998·Granted Dec 12, 2000·64 cites·20 claims
- 0466US4860755ADifferential pressure applanation tonometerERATH YOUNG INSTR COMPANY INC·Filed 1988·Granted Aug 29, 1989·82 cites·14 claims
- 0565US6128251ASolid marine seismic cableSYNTRON INC·Filed 1999·Granted Oct 3, 2000·38 cites·18 claims
- 0663US6188645B1Seismic sensor array with electrical-to optical transformersGEOSENSOR CORP·Filed 1999·Granted Feb 13, 2001·36 cites·16 claims
- 0763US6188646B1Hydrophone carrierSYNTRON INC·Filed 1999·Granted Feb 13, 2001·40 cites·20 claims
- 0861US6161433AFiber optic geophoneGEOSENSOR CORP·Filed 1999·Granted Dec 19, 2000·33 cites·11 claims
- 0957US6088299AVertical hydrophone arraySYNTRON INC·Filed 1998·Granted Jul 11, 2000·31 cites·19 claims
- 1056US5815466AHydrophone structure with reverse bend of piezoelectric elementSYNTRON INC·Filed 1997·Granted Sep 29, 1998·20 cites·14 claims
- 1154US6256588B1Seismic sensor array with electrical to optical transformersGEOSENSOR CORP·Filed 1999·Granted Jul 3, 2001·26 cites·11 claims
- 1254US4694174AInfrared gas detectorGAS ALARM SERVICE INC·Filed 1985·Granted Sep 15, 1987·18 cites·15 claims
- 1349US6031789AMagnetic drive subassembly in a depth control deviceINPUT OUTPUT INC·Filed 1997·Granted Feb 29, 2000·17 cites·15 claims
- 1446US5677894AHydrophone structure with center pinSYNTRON INC·Filed 1995·Granted Oct 14, 1997·12 cites·15 claims
- 1546US5675556AHydrophone structure and methodSYNTRON INC·Filed 1995·Granted Oct 7, 1997·18 cites·15 claims
- 1644US6151277AHydrophone with ferroelectric sensorSYNTRON INC·Filed 1999·Granted Nov 21, 2000·18 cites·20 claims
- 1744US5086473AFeedback system for a sub-woofer loudspeakerERATH LOUIS W·Filed 1989·Granted Feb 4, 1992·20 cites·28 claims
- 1843US2007269055A1Feedback System for a Multiple Element LoudspeakerERATH LOUIS W·Filed 2006·Application pending·0 cites
- 1942US5541894ALow distortion hydrophoneSYNTRON INC·Filed 1995·Granted Jul 30, 1996·9 cites·18 claims
- 2040US6049511AHigh sensitivity fiber optic hydrophoneGEOSENSOR CORP·Filed 1999·Granted Apr 11, 2000·11 cites·11 claims
- 2137US5726396AFolded acoustical hornFiled 1996·Granted Mar 10, 1998·9 cites·15 claims
- 2233US5663931ASegmentation and polarization in a hydrophone crystalSYNTRON INC·Filed 1995·Granted Sep 2, 1997·3 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Louis W. Erath files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →