Inventor · disambiguated record
John Crawford
Also filed as: CRAWFORD JOHN · CRAWFORD JOHN A · CRAWFORD JOHN ARTHUR · CRAWFORD JOHN W
20 granted patents·2 pending applications·292 citations·filing 1977–2023
95Inventor score
Files withBP CHEMICALS ADDITIVES9LUBRIZOL ADIBIS HOLDINGS LTD4CHEVRON RES2DEMEETRA AGBIO INC2BP INTERNATIONAL LIMITED1
Top patents by PatentIndex Score
22 records- 0177US5792735ALubricating oil compositionsBP CHEMICALS ADDITIVES·Filed 1997·Granted Aug 11, 1998·32 cites·9 claims
- 0277US5433871AProcess for the production of a lubricating oil additive concentrateBP CHEMICALS ADDITIVES·Filed 1993·Granted Jul 18, 1995·28 cites·5 claims
- 0376US6254455B1Jig for use in sharpening cutting implement for use in wood turningFiled 2000·Granted Jul 3, 2001·19 cites·7 claims
- 0475US4248725ADispersants having antioxidant activity and lubricating compositions containing themCHEVRON RES·Filed 1979·Granted Feb 3, 1981·26 cites·10 claims
- 0573US4194057APolymer composition viscosity index improver additive and lubricating oil containing the additiveOROBIS LTD·Filed 1978·Granted Mar 18, 1980·21 cites·18 claims
- 0672US4101428AComposition comprising a mixture of the zinc salts of O,O-di(primary and secondary) alkyldithiophosphoric acidsCHEVRON RES·Filed 1977·Granted Jul 18, 1978·14 cites·8 claims
- 0771US11992497B2Cannabinoid derivatives and their useDEMEETRA AGBIO INC·Filed 2023·Granted May 28, 2024·0 cites·8 claims
- 0870US6268320B1Sulphur-containing calixarenes, metal salts thereof, and additive and lubricating oil compositions containing themLUBRIZOL ADIBIS HOLDINGS LTD·Filed 1998·Granted Jul 31, 2001·24 cites·52 claims
- 0969US12433903B2Cannabinoid derivatives and their useDEMEETRA AGBIO INC·Filed 2023·Granted Oct 7, 2025·0 cites·8 claims
- 1067US5714443ASulphurised alkaline earth metal hydrocarbyl phenates, their production and use thereofBP CHEMICALS ADDITIVES·Filed 1994·Granted Feb 3, 1998·16 cites·12 claims
- 1163US5716914AAlkaline earth metal hydrocarbyl phenates, their sulphurized derivatives, their production and use thereofBP INTERNATIONAL LIMITED·Filed 1995·Granted Feb 10, 1998·18 cites·17 claims
- 1262US5281345AProcess for the preparation of a lubricating oil additive concentrate with an organic halide catalystBP CHEMICALS ADDITIVES·Filed 1990·Granted Jan 25, 1994·17 cites·10 claims
- 1359US5451331AProcess for the production of a lubricating oil additive concentrateBP CHEMICALS ADDITIVES·Filed 1994·Granted Sep 19, 1995·15 cites·9 claims
- 1457US6090759AAlkaline earth metal hydrocarbyl phenates, their sulphurized derivatives, their production and use thereofLUBRIZOL ADIBIS HOLDINGS LTD·Filed 1997·Granted Jul 18, 2000·13 cites·28 claims
- 1550US5674821ADetergent compositionsBP CHEMICALS ADDITIVES·Filed 1995·Granted Oct 7, 1997·12 cites·8 claims
- 1646US5437803AProcess for the production of a lubricating oil additive concentrateBP CHEMICALS ADDITIVES·Filed 1993·Granted Aug 1, 1995·10 cites·4 claims
- 1744US6090760ASulphurized alkaline earth metal hydrocarbyl phenates, their production and use thereofLUBRIZOL ADIBIS HOLDINGS LTD·Filed 1997·Granted Jul 18, 2000·7 cites·29 claims
- 1844US6008166ADetergent compositionsLUBRIZOL ADIBIS HOLDINGS LTD·Filed 1997·Granted Dec 28, 1999·9 cites·10 claims
- 1943US5090966AFuel composition containing an additive for reducing valve seat recessionBP CHEMICALS ADDITIVES·Filed 1990·Granted Feb 25, 1992·9 cites·13 claims
- 2043US2007232818A1Transesterification of oil to form biodieselsDOMESTIC ENERGY LEASING LLC·Filed 2006·Application pending·0 cites
- 2141US2011232673A1Hair treatment tool including flat ironCRAWFORD JOHN A·Filed 2011·Application pending·0 cites
- 2232US5384053AProduction of a lubricating oil additive concentrateBP CHEMICALS ADDITIVES·Filed 1994·Granted Jan 24, 1995·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →