Inventor · disambiguated record
Thomas L. Ashcraft
Also filed as: ASHCRAFT JR THOMAS L · ASHCRAFT JR THOMAS LEE · ASHCRAFT THOMAS L · ASHCRAFT THOMAS LEE
14 granted patents·552 citations·filing 1975–1996
94Inventor score
Top patents by PatentIndex Score
14 records- 0195US4293428APropoxylated ethoxylated surfactants and method of recovering oil therewithEXXON PRODUCTION RESEARCH CO·Filed 1978·Granted Oct 6, 1981·139 cites·26 claims
- 0294US3977471AOil recovery method using a surfactantEXXON PRODUCTION RESEARCH CO·Filed 1975·Granted Aug 31, 1976·78 cites·18 claims
- 0394US3946812AUse of materials as waterflood additivesEXXON PRODUCTION RESEARCH CO·Filed 1975·Granted Mar 30, 1976·125 cites·6 claims
- 0492US4973764AAlkylphenols and derivatives thereof via phenol alkylation by cracked petroleum distillatesEXXON RESEARCH ENGINEERING CO·Filed 1989·Granted Nov 27, 1990·33 cites·5 claims
- 0583US6177387B1Reduced odor and high stability aircraft turbine oil base stockEXXON CHEMICAL PATENTS INC·Filed 1996·Granted Jan 23, 2001·27 cites·30 claims
- 0683US4828032AOil recovery process using alkyl hydroxyaromatic dianionic surfactants as mobility control agentsEXXON PRODUCTION RESEARCH CO·Filed 1988·Granted May 9, 1989·43 cites·21 claims
- 0775US5503761ATechnical pentaerythritol esters as lubricant base stockEXXON RESEARCH ENGINEERING CO·Filed 1994·Granted Apr 2, 1996·25 cites·11 claims
- 0875US4914246AAlkylphenols and derivatives thereof via phenol alkylation by cracked petroleum distillatesEXXON RESEARCH ENGINEERING CO·Filed 1987·Granted Apr 3, 1990·21 cites·20 claims
- 0966US4452708AOil recovery method using sulfonate surfactants derived from extracted aromatic feedstocksEXXON PRODUCTION RESEARCH CO·Filed 1982·Granted Jun 5, 1984·23 cites·13 claims
- 1061US5308522AStress activated high load additives for lubricant compositionsEXXON RESEARCH ENGINEERING CO·Filed 1993·Granted May 3, 1994·11 cites·8 claims
- 1157US5215548ADistillate fuels containing an amine salt of a sulfonic acid and a low volatility carrier fluid (PNE-554)EXXON RESEARCH ENGINEERING CO·Filed 1991·Granted Jun 1, 1993·13 cites·9 claims
- 1246US4959490AProcess for manufacturing disulfonate surfactantsEXXON PRODUCTION RESEARCH CO·Filed 1988·Granted Sep 25, 1990·4 cites·20 claims
- 1344US5639717AAdditive combination to reduce deposit forming tendencies and improve antioxidancy of aviation turbine oils (LAW328)EXXON RESEARCH ENGINEERING CO·Filed 1996·Granted Jun 17, 1997·5 cites·11 claims
- 1438US5798321ARust resistant turbo oils containing monobasic amino phosphates and dicarboxylic acidsEXXON RESEARCH ENGINEERING CO·Filed 1996·Granted Aug 25, 1998·5 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →