Inventor · disambiguated record
Keith C. Yao
Also filed as: YAO KEITH C
3 granted patents·151 citations·filing 1983–1987
75Inventor score
Files withEXXON RESEARCH ENGINEERING CO3
Top patents by PatentIndex Score
3 records- 0194US4512878AUsed oil re-refiningEXXON RESEARCH ENGINEERING CO·Filed 1983·Granted Apr 23, 1985·102 cites·11 claims
- 0278US4846962ARemoval of basic nitrogen compounds from extracted oils by use of acidic polar adsorbents and the regeneration of said adsorbentsEXXON RESEARCH ENGINEERING CO·Filed 1987·Granted Jul 11, 1989·40 cites·18 claims
- 0340US4808300ASimultaneous removal of aromatics and wax from lube distillate by an adsorption processEXXON RESEARCH ENGINEERING CO·Filed 1987·Granted Feb 28, 1989·9 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →