P

Inventor

HUTCHISON DAVID A

US12 patents
⚠️ This page may combine multiple inventors who share the name “HUTCHISON DAVID A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AFTON CHEMICAL CORP

4 patents
US7863228B2Jan 4, 2011

Additives for lubricants and fuels

AFTON CHEMICAL CORP20 citations91
US7361629B2Apr 22, 2008

Additives for lubricants and fuels

AFTON CHEMICAL CORP22 citations91
US7833954B2Nov 16, 2010

Lubricating composition

AFTON CHEMICAL CORP0 citations51
US8377856B2Feb 19, 2013

Extended drain diesel lubricant formulations

AFTON CHEMICAL CORP1 citations49

AMOCO CORP

2 patents
US4871465AOct 3, 1989

Chlorine-free silver protective lubricant composition (II)

AMOCO CORP27 citations91
US4948523AAug 14, 1990

Chlorine-free silver protective lubricant composition (I)

AMOCO CORP40 citations90

ORION INDUSTRIES

2 patents
USD320604SOct 8, 1991

Cover for an antenna base

ORION INDUSTRIES2 citations61
USD314576SFeb 12, 1991

Combined base and cover for an antenna

ORION INDUSTRIES5 citations61

ATLANTIC RICHFIELD CO

2 patents
US4498998AFeb 12, 1985

Stabilization of hydrocracked oils against UV-light degradation with certain dihydroxy components

ATLANTIC RICHFIELD CO3 citations61
US4427563AJan 24, 1984

Stabilization of hydrocracked oils with certain dihydroxy diphenyl oxidation stabilizers

ATLANTIC RICHFIELD CO2 citations61

ETHYL PETROLEUM ADDITIVES INC

1 patent
US5174915ADec 29, 1992

Medium speed diesel engine lubricating oils

ETHYL PETROLEUM ADDITIVES INC29 citations89

MALFER DENNIS J

1 patent
US8623105B2Jan 7, 2014

Fuel additives to maintain optimum injector performance

MALFER DENNIS J4 citations68