Inventor

WILLIS JR WILLIAM W

US5 patents

⚠️ This page may combine multiple inventors who share the name “WILLIS JR WILLIAM W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHEVRON CHEM CO

4 patents

US5861363AJan 19, 1999

Polyalkylene succinimide composition useful in internal combustion engines

CHEVRON CHEM CO43 citations88

US5529705AJun 25, 1996

Methods for preparing normal and overbased phenates

CHEVRON CHEM CO19 citations78

US6291408B1Sep 18, 2001

Detergent-dispersant additives for lubricating oils of the sulphurized and superalkalized alkaline earth alkylsalicylate-alkylphenate type

CHEVRON CHEM CO8 citations72

US6001785ADec 14, 1999

Detergent-dispersant additives for lubricating oils of the sulphurised and superalkalised, alkaline earth alkylsalicylate-alkaylphenate type

CHEVRON CHEM CO16 citations72

(unassigned)

1 patent

US5808145ASep 15, 1998

Detergent-dispersant additives for lubricating oils of the sulfurized and superalkalized alkaline earth alkylsalicylate-alkylphenate type