Inventor · disambiguated record
Clarence O. Walker
Also filed as: WALKER CLARENCE · WALKER CLARENCE O
19 granted patents·848 citations·filing 1973–2010
96Inventor score
Top patents by PatentIndex Score
19 records- 0197US4664816AEncapsulated water absorbent polymers as lost circulation additives for aqueous drilling fluidsTEXACO INC·Filed 1985·Granted May 12, 1987·145 cites·18 claims
- 0296US4614599AEncapsulated lime as a lost circulation additive for aqueous drilling fluidsTEXACO INC·Filed 1985·Granted Sep 30, 1986·120 cites·6 claims
- 0395US7354194B2Tympanic thermometer probe cover with film support mechanismCOVIDIEN AG·Filed 2005·Granted Apr 8, 2008·36 cites·25 claims
- 0493US7434991B2Thermal tympanic thermometerCOVIDIEN AG·Filed 2006·Granted Oct 14, 2008·26 cites·20 claims
- 0592US4633950AMethod for controlling lost circulation of drilling fluids with hydrocarbon absorbent polymersTEXACO INC·Filed 1985·Granted Jan 6, 1987·153 cites·11 claims
- 0691US7686506B2Stackable tympanic thermometer probe cover cassetteCOVIDIEN AG·Filed 2006·Granted Mar 30, 2010·23 cites·18 claims
- 0789US3953337AMethod of drilling wells employing water base drilling fluidsTEXACO INC·Filed 1973·Granted Apr 27, 1976·41 cites·2 claims
- 0888US7556424B2Tympanic thermometer prove cover cassette and holderCOVIDIEN AG·Filed 2006·Granted Jul 7, 2009·18 cites·22 claims
- 0987US4704213AEncapsulated oil absorbent polymers as lost circulation additives for oil based drilling fluidsTEXACO INC·Filed 1985·Granted Nov 3, 1987·75 cites·12 claims
- 1085US3989630ALow solids shale controlling drilling fluidTEXACO INC·Filed 1974·Granted Nov 2, 1976·25 cites·16 claims
- 1184US4635726AMethod for controlling lost circulation of drilling fluids with water absorbent polymersTEXACO INC·Filed 1985·Granted Jan 13, 1987·70 cites·3 claims
- 1282US7927012B2Probe cover cassette with improved probe cover supportCOVIDIEN AG·Filed 2008·Granted Apr 19, 2011·9 cites·11 claims
- 1371US4494610AMethod for releasing stuck drill pipeTEXACO INC·Filed 1983·Granted Jan 22, 1985·35 cites·13 claims
- 1471US4466486AMethod for releasing stuck drill pipeTEXACO INC·Filed 1983·Granted Aug 21, 1984·25 cites·17 claims
- 1569US7478946B2Probe cover cassette with improved probe cover supportCOVIDIEN AG·Filed 2006·Granted Jan 20, 2009·4 cites·13 claims
- 1666US4230587AAdditive composition for release of stuck drill pipeTEXACO INC·Filed 1978·Granted Oct 28, 1980·18 cites·10 claims
- 1763USRE43745ETympanic thermometer probe cover with film support mechanismWALKER CLARENCE·Filed 2010·Granted Oct 16, 2012·2 cites·25 claims
- 1850US4261422AMethod for treating underground formationsTEXACO INC·Filed 1978·Granted Apr 14, 1981·13 cites·15 claims
- 1949US4064056ADrilling fluids containing an additive compositionTEXACO INC·Filed 1976·Granted Dec 20, 1977·10 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →