Inventor · disambiguated record
Keith W. Katahara
Also filed as: KATAHARA KEITH W
14 granted patents·670 citations·filing 1988–1995
94Inventor score
Files withATLANTIC RICHFIELD CO14
Top patents by PatentIndex Score
14 records- 0192US5063542APiezoelectric transducer with displacement amplifierATLANTIC RICHFIELD CO·Filed 1989·Granted Nov 5, 1991·94 cites·8 claims
- 0290US6150822ASensor in bit for measuring formation properties while drillingATLANTIC RICHFIELD CO·Filed 1995·Granted Nov 21, 2000·143 cites·6 claims
- 0389US5475309ASensor in bit for measuring formation properties while drilling including a drilling fluid ejection nozzle for ejecting a uniform layer of fluid over the sensorATLANTIC RICHFIELD CO·Filed 1994·Granted Dec 12, 1995·111 cites·9 claims
- 0483US5251479ADownhole wellbore tool for measuring flow parametersATLANTIC RICHFIELD CO·Filed 1991·Granted Oct 12, 1993·83 cites·4 claims
- 0581US4912683AMethod for acoustically measuring wall thickness of tubular goodsATLANTIC RICHFIELD CO·Filed 1988·Granted Mar 27, 1990·62 cites·8 claims
- 0681US4899844AAcoustical well logging method and apparatusATLANTIC RICHFIELD CO·Filed 1989·Granted Feb 13, 1990·48 cites·17 claims
- 0770US4949316AAcoustic logging tool transducersATLANTIC RICHFIELD CO·Filed 1989·Granted Aug 14, 1990·28 cites·16 claims
- 0869US5670878AInspecting a conductive object with a steady state magnetic field and induced eddy currentATLANTIC RICHFIELD CO·Filed 1993·Granted Sep 23, 1997·34 cites·10 claims
- 0968US4975615APiezoelectric transducerATLANTIC RICHFIELD CO·Filed 1989·Granted Dec 4, 1990·24 cites·5 claims
- 1052US5218573AWell perforation inspectionATLANTIC RICHFIELD CO·Filed 1991·Granted Jun 8, 1993·23 cites·5 claims
- 1140US5119343ATransducers for acoustic logging toolATLANTIC RICHFIELD CO·Filed 1990·Granted Jun 2, 1992·7 cites·25 claims
- 1235US5522264AMethod and apparatus for detecting and measuring gelled pigs in tubularsATLANTIC RICHFIELD CO·Filed 1994·Granted Jun 4, 1996·5 cites·9 claims
- 1333US5020036AMagnetostrictive transducer for logging toolATLANTIC RICHFIELD CO·Filed 1990·Granted May 28, 1991·7 cites·9 claims
- 1429US5069307AAcoustic signal transmitter for logging toolsATLANTIC RICHFIELD CO·Filed 1989·Granted Dec 3, 1991·1 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →