Inventor · disambiguated record
David K. Walters
Also filed as: WALTERS DAVID K · WALTERS DAVID KENVYN
10 granted patents·215 citations·filing 1980–1996
91Inventor score
Top patents by PatentIndex Score
10 records- 0193US5342531APolyalkylene glycol lubricant compositionsETHYL PETROLEUM ADDITIVES LTD·Filed 1993·Granted Aug 30, 1994·70 cites·21 claims
- 0276US5691283AUse of transmission and gear oil lubricants having enhanced friction propertiesETHYL PETROLEUM ADDITIVES LTD·Filed 1995·Granted Nov 25, 1997·34 cites·38 claims
- 0371US5254272ALubricant compositions with metal-free antiwear or load-carrying additives and amino succinate estersETHYL PETROLEUM ADDITIVES LTD·Filed 1992·Granted Oct 19, 1993·27 cites·40 claims
- 0467US5126064ALubricant compositionsETHYL PETROLEUM ADDITIVES LTD·Filed 1990·Granted Jun 30, 1992·23 cites·18 claims
- 0560US4305835ALubricating composition containing emulsion-sludge inhibitorsETHYL CORP·Filed 1980·Granted Dec 15, 1981·13 cites·14 claims
- 0656US5700764ALubricant compositionsETHYL PETROLEUM ADDITIVES LTD·Filed 1996·Granted Dec 23, 1997·16 cites·2 claims
- 0755US5021176AFriction modifierETHYL PETROLEUM ADDITIVES LTD·Filed 1990·Granted Jun 4, 1991·13 cites·9 claims
- 0851US5190680AFriction modifier comprising a long chain succinimide derivative and long chain acid amideETHYL PETROLEUM ADDITIVES LTD·Filed 1991·Granted Mar 2, 1993·9 cites·13 claims
- 0940USRE34459EFriction modifierETHYL PETROLEUM ADDITIVES LTD·Filed 1992·Granted Nov 30, 1993·6 cites·9 claims
- 1037US4305834ALubricating composition containing emulsion-sludge inhibitorsETHYL CORP·Filed 1980·Granted Dec 15, 1981·4 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →