Inventor
COOK STEPHEN J
GB42 patents
⚠️ This page may combine multiple inventors who share the name “COOK STEPHEN J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LUBRIZOL CORP
13 patentsUS7651984B2Jan 26, 2010
Lubricant from water in oil emulsion with suspended solid base
LUBRIZOL CORP24 citations87
US10005979B2Jun 26, 2018
Lubricant composition containing an antiwear agent
LUBRIZOL CORP4 citations72
US11384308B2Jul 12, 2022
Alkyl phosphate amine salts for use in lubricants
LUBRIZOL CORP2 citations71
US11168278B2Nov 9, 2021
Alkyl phosphate amine salts for use in lubricants
LUBRIZOL CORP2 citations71
US10260019B2Apr 16, 2019
Hydroxyaromatic succinimide detergents for lubricating compositions
LUBRIZOL CORP3 citations70
US8354362B2Jan 15, 2013
Polymer and lubricating compositions thereof
LUBRIZOL CORP3 citations61
US7939478B2May 10, 2011
Method of lubricating a marine diesel engine
LUBRIZOL CORP5 citations61
US7456136B2Nov 25, 2008
Linear compounds containing phenolic and salicylic units
LUBRIZOL CORP6 citations60
US7928043B2Apr 19, 2011
Lubricating compositions
LUBRIZOL CORP1 citations50
US10745638B2Aug 18, 2020
Marine diesel lubricating composition
LUBRIZOL CORP0 citations46
US10577556B2Mar 3, 2020
Michael adduct amino esters as total base number boosters for marine diesel engine lubricating compositions
LUBRIZOL CORP0 citations39
US10077413B2Sep 18, 2018
Lubricating composition containing a detergent
LUBRIZOL CORP0 citations39
US7678746B2Mar 16, 2010
Lubricating compositions containing sulphonates and phenates
LUBRIZOL CORP0 citations39
BP CHEMICALS ADDITIVES
8 patentsUS5114601AMay 19, 1992
Overbased calixarates, compositions containing them and use as lubricating oil additives
BP CHEMICALS ADDITIVES21 citations82
US5616543AApr 1, 1997
Lubricating oil compositions
BP CHEMICALS ADDITIVES7 citations74
US5589445ADec 31, 1996
Overbased metal salts, their preparation and use
BP CHEMICALS ADDITIVES9 citations70
US5205946AApr 27, 1993
Process for the production of overbased calixarates
BP CHEMICALS ADDITIVES16 citations69
US5356550AOct 18, 1994
Lubricating oil additives
BP CHEMICALS ADDITIVES6 citations63
US5286873AFeb 15, 1994
Succinimide derivatives and processes for their preparation
BP CHEMICALS ADDITIVES4 citations63
US5145984ASep 8, 1992
Bis-succinimide derivatives
BP CHEMICALS ADDITIVES3 citations63
US5458790AOct 17, 1995
Alkaline earth metal hydrocarbyl salicylate concentrates, their preparation and use
BP CHEMICALS ADDITIVES5 citations62
HEWLETT PACKARD CO
6 patentsUS4771234ASep 13, 1988
Vacuum actuated test fixture
HEWLETT PACKARD CO123 citations96
US4799007AJan 17, 1989
Bendable pin board test fixture
HEWLETT PACKARD CO28 citations93
US5311119AMay 10, 1994
Probe contact through small amplitude vibration for bed of nails testing
HEWLETT PACKARD CO10 citations74
US5304921AApr 19, 1994
Enhanced grounding system for short-wire lengthed fixture
HEWLETT PACKARD CO11 citations74
US4870353ASep 26, 1989
Pre-loaded compression spring assembly
HEWLETT PACKARD CO12 citations74
US6166829ADec 26, 2000
Image scanner with intrinsic biasing of a scan head
HEWLETT PACKARD CO2 citations62