Douglas R. Chrisope

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St. Louis, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Automatic transmission fluids and additives therefor
- Patent number 5,387,346
- Issue date Feb 7, 1995
- Ethyl Petroleum Additives, Inc.
- Rolfe J. Hartley
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Ashless or low-ash synthetic base compositions and additives therefor
- Patent number 5,360,562
- Issue date Nov 1, 1994
- Ethyl Petroleum Additives, Inc.
- Douglas R. Chrisope
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Ashless or low-ash synthetic base compositions and additives therefor
- Patent number 5,089,156
- Issue date Feb 18, 1992
- Ethyl Petroleum Additives, Inc.
- Douglas R. Chrisope
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...