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William W. Willis Jr.
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Pinole, CA, US
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last 30 patents
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Patent Grant
Detergent-dispersant additives for lubricating oils of the sulphuri...
Patent number
6,291,408
Issue date
Sep 18, 2001
Chevron Chemical Company LLC
Jean-Louis Le Coent
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Detergent containing lithium metal having improved dispersancy and...
Patent number
6,235,688
Issue date
May 22, 2001
Chevron Chemical Company LLC
Vernon R. Small
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Detergent-dispersant additives for lubricating oils of the sulphuri...
Patent number
6,001,785
Issue date
Dec 14, 1999
Chevron Chemical Company LLC
Jean-Louis Le Coent
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Polyalkylene succinimide composition useful in internal combustion...
Patent number
5,861,363
Issue date
Jan 19, 1999
Chevron Chemical Company LLC
William W. Willis
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Detergent-dispersant additives for lubricating oils of the sulfuriz...
Patent number
5,808,145
Issue date
Sep 15, 1998
Jean-Louis Le Coent
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Methods for preparing normal and overbased phenates
Patent number
5,677,270
Issue date
Oct 14, 1997
Chevron Chemical Company
Vernon R. Small
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Methods for preparing normal and overbased phenates
Patent number
5,529,705
Issue date
Jun 25, 1996
Chevron Chemical Company
Vernon R. Small
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...