John V. Bullen

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Bracknell, GB

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Patents Grantslast 30 patents

Information Patent Grant
Friction modifier
- Patent number RE34459
- Issue date Nov 30, 1993
- Ethyl Petroleum Additives, Limited
- John V. Bullen
- 252 - Compositions
Information Patent Grant
Friction modifier comprising a long chain succinimide derivative an...
- Patent number 5,190,680
- Issue date Mar 2, 1993
- Ethyl Petroleum Additives Ltd.
- John V. Bullen
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Friction modifier
- Patent number 5,021,176
- Issue date Jun 4, 1991
- Ethyl Petroleum Additives, Limited
- John V. Bullen
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...