Inventor · disambiguated record
Timothy R. Erdman
Also filed as: ERDMAN TIMOTHY R
16 granted patents·419 citations·filing 1978–1989
94Inventor score
Files withCHEVRON RES16
Top patents by PatentIndex Score
16 records- 0196US4746446AModified succinimidesCHEVRON RES·Filed 1987·Granted May 24, 1988·78 cites·48 claims
- 0296US4648980AHydrocarbon soluble nitrogen containing dispersant - fluorophosphoric acid adductsCHEVRON RES·Filed 1986·Granted Mar 10, 1987·111 cites·15 claims
- 0389US4927551ALubricating oil compositions containing a combination of a modified succinimide and a Group II metal overbased sulfurized alkylphenolCHEVRON RES·Filed 1989·Granted May 22, 1990·48 cites·10 claims
- 0484US4406803AMethod for improving fuel economy of internal combustion enginesCHEVRON RES·Filed 1982·Granted Sep 27, 1983·29 cites·6 claims
- 0581US4615826AHydrocarbon soluble nitrogen containing dispersant-fluorophosphoric acid adductsCHEVRON RES·Filed 1985·Granted Oct 7, 1986·32 cites·9 claims
- 0679US4747971AHydrocarbon soluble nitrogen containing dispersant - fluorophosphoric acid adductsCHEVRON RES·Filed 1987·Granted May 31, 1988·29 cites·4 claims
- 0773US4331222AMethod for reducing brake noise in oil-immersed disc brakesCHEVRON RES·Filed 1980·Granted May 25, 1982·17 cites·4 claims
- 0871US4410437AAmine substituted hydrocarbon polymer dispersant lubricating oil additivesCHEVRON RES·Filed 1981·Granted Oct 18, 1983·19 cites·3 claims
- 0969US4376056AFuel economy in internal combustion enginesCHEVRON RES·Filed 1982·Granted Mar 8, 1983·17 cites·2 claims
- 1058US4840744AModified succinimides and lubricating oil compositions containing the sameCHEVRON RES·Filed 1988·Granted Jun 20, 1989·10 cites·43 claims
- 1156US4336149AFuel economy in internal combustion enginesCHEVRON RES·Filed 1980·Granted Jun 22, 1982·11 cites·4 claims
- 1243US4275006AProcess of preparing dispersant lubricating oil additivesCHEVRON RES·Filed 1978·Granted Jun 23, 1981·5 cites·2 claims
- 1342US4713190AModified carboxylic amide dispersantsCHEVRON RES·Filed 1985·Granted Dec 15, 1987·7 cites·14 claims
- 1440US4584112AFuel-efficient lubricating oilCHEVRON RES·Filed 1985·Granted Apr 22, 1986·6 cites·4 claims
- 1529US4548722ADispersant lubricating oil additivesCHEVRON RES·Filed 1984·Granted Oct 22, 1985·0 cites·5 claims
- 1629US4521319ADispersant lubricating oil additivesCHEVRON RES·Filed 1983·Granted Jun 4, 1985·0 cites·3 claims
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