Inventor
LAM WILLIAM Y
US32 patents
⚠️ This page may combine multiple inventors who share the name “LAM WILLIAM Y”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AFTON CHEMICAL CORP
14 patentsUS11155764B2Oct 26, 2021
Lubricants for use in boosted engines
AFTON CHEMICAL CORP17 citations83
US10214703B2Feb 26, 2019
Lubricants with zinc dialkyl dithiophosphate and their use in boosted internal combustion engines
AFTON CHEMICAL CORP19 citations83
US9068135B1Jun 30, 2015
Lubricating oil composition and additive therefor having improved piston deposit control and emulsion stability
AFTON CHEMICAL CORP10 citations83
US7776800B2Aug 17, 2010
Titanium-containing lubricating oil composition
AFTON CHEMICAL CORP7 citations73
US10377963B2Aug 13, 2019
Lubricants for use in boosted engines
AFTON CHEMICAL CORP2 citations71
US7407918B2Aug 5, 2008
Lubricating oil compositions
AFTON CHEMICAL CORP3 citations63
US7897548B2Mar 1, 2011
Additives and lubricant formulations for improved antiwear properties
AFTON CHEMICAL CORP2 citations62
US7879774B2Feb 1, 2011
Titanium-containing lubricating oil composition
AFTON CHEMICAL CORP2 citations60
US8034752B2Oct 11, 2011
Lubricating composition
AFTON CHEMICAL CORP2 citations54
US10323205B2Jun 18, 2019
Lubricant compositions for reducing timing chain stretch
AFTON CHEMICAL CORP0 citations40
US10550349B2Feb 4, 2020
Lubricants with titanium and/or tungsten and their use for improving low speed pre-ignition
AFTON CHEMICAL CORP0 citations39
US10421922B2Sep 24, 2019
Lubricants with magnesium and their use for improving low speed pre-ignition
AFTON CHEMICAL CORP0 citations39
US10336959B2Jul 2, 2019
Lubricants with calcium-containing detergent and their use for improving low speed pre-ignition
AFTON CHEMICAL CORP0 citations39
US10280383B2May 7, 2019
Lubricants with molybdenum and their use for improving low speed pre-ignition
AFTON CHEMICAL CORP0 citations39
ETHYL PETROLEUM ADDITIVES INC
10 patentsUS4957643ASep 18, 1990
Lubricant compositions
ETHYL PETROLEUM ADDITIVES INC52 citations92
US4946610AAug 7, 1990
Sulfur-bridged phenolic antioxidants
ETHYL PETROLEUM ADDITIVES INC48 citations92
US4927552AMay 22, 1990
Lubricating oil composition
ETHYL PETROLEUM ADDITIVES INC51 citations92
US4885365ADec 5, 1989
Dithiocarbanate lubricant compositions
ETHYL PETROLEUM ADDITIVES INC53 citations92
US4876375AOct 24, 1989
Norbornyl dithiocarbamates
ETHYL PETROLEUM ADDITIVES INC52 citations92
US4836942AJun 6, 1989
Lubricant composition
ETHYL PETROLEUM ADDITIVES INC4 citations63
US4639324AJan 27, 1987
Lubricating compositions
ETHYL PETROLEUM ADDITIVES INC5 citations63
US5045089ASep 3, 1991
Fuel compositions containing phenolic antioxidants
ETHYL PETROLEUM ADDITIVES INC2 citations62
US5026493AJun 25, 1991
Reduced ash content lubricants
ETHYL PETROLEUM ADDITIVES INC3 citations60
US5166439ANov 24, 1992
Composition containing a mannich base of a partially sulfurized hindered phenol mixture
ETHYL PETROLEUM ADDITIVES INC4 citations59
ETHYL CORP
4 patentsUS6599865B1Jul 29, 2003
Effective antioxidant combination for oxidation and deposit control in crankcase lubricants
ETHYL CORP86 citations97
US6096695AAug 1, 2000
Sulfurized phenolic antioxidant composition, method of preparing same, and petroleum products containing same
ETHYL CORP64 citations96
US5009802AApr 23, 1991
Phenolic antioxidant composition
ETHYL CORP4 citations62
US5004481AApr 2, 1991
Fuel compositions containing sulfur-bridged phenolic antioxidants
ETHYL CORP3 citations62