Inventor · disambiguated record
Richard A. Holstedt
Also filed as: HOLSTEDT RICHARD A
19 granted patents·432 citations·filing 1980–1987
96Inventor score
Files withUNION OIL CO19
Top patents by PatentIndex Score
19 records- 0190US4623474AOxidation and corrosion inhibitors for boron-containing lubricantsUNION OIL CO·Filed 1981·Granted Nov 18, 1986·39 cites·10 claims
- 0290US4410436ALubricating oil containing a boron compound and corrosion inhibitorsUNION OIL CO·Filed 1981·Granted Oct 18, 1983·40 cites·24 claims
- 0385US4427560AAnti-oxidation and corrosion inhibitors for boron-containing lubricantsUNION OIL CO·Filed 1981·Granted Jan 24, 1984·32 cites·37 claims
- 0484US4557843ABoron-containing heterocyclic compounds and lubricating compositions containing the sameUNION OIL CO·Filed 1985·Granted Dec 10, 1985·38 cites·7 claims
- 0584US4533480ABis(hydrocarbyloxy methylated) boron-containing, heterocyclic compounds and lubricating compositions containing the sameUNION OIL CO·Filed 1983·Granted Aug 6, 1985·29 cites·34 claims
- 0684US4412928ACorrosion inhibitors for boron-containing lubricantsUNION OIL CO·Filed 1981·Granted Nov 1, 1983·31 cites·26 claims
- 0783US4400284ABoron derivatives as lubricant additivesUNION OIL CO·Filed 1980·Granted Aug 23, 1983·27 cites·16 claims
- 0880US4657686ALubricating compositionsUNION OIL CO·Filed 1985·Granted Apr 14, 1987·26 cites·21 claims
- 0975US4490265ALubricating compositionsUNION OIL CO·Filed 1982·Granted Dec 25, 1984·23 cites·46 claims
- 1072US4629580ABoron-containing heterocyclic compounds and lubricating oil containing sameUNION OIL CO·Filed 1985·Granted Dec 16, 1986·21 cites·9 claims
- 1172US4629579ABoron derivativesUNION OIL CO·Filed 1984·Granted Dec 16, 1986·19 cites·17 claims
- 1271US4627930ABoron-containing heterocyclic compounds and lubricating oil containing sameUNION OIL CO·Filed 1985·Granted Dec 9, 1986·21 cites·59 claims
- 1367US4595514ABoron-containing heterocyclic compound and lubricating compositions containing sameUNION OIL CO·Filed 1985·Granted Jun 17, 1986·18 cites·89 claims
- 1465US4511516ABoron containing heterocyclic compoundsUNION OIL CO·Filed 1982·Granted Apr 16, 1985·16 cites·24 claims
- 1560US4756842ALubricating compositionsUNION OIL CO·Filed 1986·Granted Jul 12, 1988·14 cites·20 claims
- 1657US4724099ALubricating compositionsUNION OIL CO·Filed 1986·Granted Feb 9, 1988·12 cites·39 claims
- 1756US4801729ALubricating compositionsUNION OIL CO·Filed 1987·Granted Jan 31, 1989·12 cites·55 claims
- 1855US4701274ATrisubstituted-borate compoundsUNION OIL CO·Filed 1985·Granted Oct 20, 1987·12 cites·42 claims
- 1934US4686056AMetal-boron derivatives as lubricant additivesUNION OIL CO·Filed 1983·Granted Aug 11, 1987·2 cites·26 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →