Inventor
LOPER JOHN T
US52 patents
⚠️ This page may combine multiple inventors who share the name “LOPER JOHN T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AFTON CHEMICAL CORP
30 patentsUS8048831B2Nov 1, 2011
Dispersant reaction product with antioxidant capability
AFTON CHEMICAL CORP133 citations99
US7645726B2Jan 12, 2010
Dispersant reaction product with antioxidant capability
AFTON CHEMICAL CORP135 citations99
US7491248B2Feb 17, 2009
Fuels compositions and methods for using same
AFTON CHEMICAL CORP57 citations98
US7897696B2Mar 1, 2011
Process for the preparation of polyalkenyl succinic anhydrides
AFTON CHEMICAL CORP151 citations97
US7214649B2May 8, 2007
Hydrocarbyl dispersants including pendant polar functional groups
AFTON CHEMICAL CORP140 citations97
US7863228B2Jan 4, 2011
Additives for lubricants and fuels
AFTON CHEMICAL CORP20 citations91
US7361629B2Apr 22, 2008
Additives for lubricants and fuels
AFTON CHEMICAL CORP22 citations91
US7766982B2Aug 3, 2010
Fuels compositions and methods for using same
AFTON CHEMICAL CORP10 citations84
US9279094B2Mar 8, 2016
Friction modifiers for use in lubricating oil compositions
AFTON CHEMICAL CORP5 citations72
US8822392B1Sep 2, 2014
Friction modifiers for lubricating oils
AFTON CHEMICAL CORP3 citations63
US8349778B2Jan 8, 2013
Lubricating compositions having improved friction properties
AFTON CHEMICAL CORP2 citations62
US7879775B2Feb 1, 2011
Lubricant compositions
AFTON CHEMICAL CORP3 citations62
US7645728B2Jan 12, 2010
Lubricant and fuel additives derived from treated amines
AFTON CHEMICAL CORP6 citations62
US9249371B2Feb 2, 2016
Additive compositions with a friction modifier and a dispersant
AFTON CHEMICAL CORP2 citations61
US7696138B2Apr 13, 2010
Alkyl acrylate copolymer dispersants and uses thereof
AFTON CHEMICAL CORP6 citations61
US7879774B2Feb 1, 2011
Titanium-containing lubricating oil composition
AFTON CHEMICAL CORP2 citations60
US10584297B2Mar 10, 2020
Polyolefin-derived dispersants
AFTON CHEMICAL CORP1 citations59
US7897552B2Mar 1, 2011
Additives and lubricant formulations for improved antioxidant properties
AFTON CHEMICAL CORP4 citations56
US9296971B2Mar 29, 2016
Friction modifiers for lubricating oils
AFTON CHEMICAL CORP1 citations52
US9193932B2Nov 24, 2015
Amide alcohol friction modifiers for lubricating oils
AFTON CHEMICAL CORP1 citations52
US8927471B1Jan 6, 2015
Friction modifiers for engine oils
AFTON CHEMICAL CORP1 citations52
US7875747B2Jan 25, 2011
Branched succinimide dispersant compounds and methods of making the compounds
AFTON CHEMICAL CORP0 citations52
US9550955B2Jan 24, 2017
Friction modifiers for lubricating oils
AFTON CHEMICAL CORP1 citations51
US9499763B2Nov 22, 2016
Additive compositions with plural friction modifiers
AFTON CHEMICAL CORP1 citations51
US9499762B2Nov 22, 2016
Additive compositions with a friction modifier and a detergent
AFTON CHEMICAL CORP1 citations51
US9499764B2Nov 22, 2016
Additive compositions with a friction modifier and a dispersant
AFTON CHEMICAL CORP0 citations51
US8048834B2Nov 1, 2011
Additives and lubricant formulations for improved catalyst performance
AFTON CHEMICAL CORP1 citations51
US8003584B2Aug 23, 2011
Lubricant compositions
AFTON CHEMICAL CORP0 citations51
US7960321B2Jun 14, 2011
Oil-soluble molybdenum derivatives derived from hydroxyethyl-substituted Mannich bases
AFTON CHEMICAL CORP1 citations51
US7884059B2Feb 8, 2011
Oil-soluble molybdenum derivatives derived from hydroxyethyl-substituted Mannich bases
AFTON CHEMICAL CORP1 citations51
ETHYL CORP
9 patentsUS6548458B2Apr 15, 2003
Succinimide-acid compounds and derivatives thereof
ETHYL CORP103 citations98
US6528463B1Mar 4, 2003
Oil soluble molybdenum compositions
ETHYL CORP54 citations95
US5597390AJan 28, 1997
Amine ester-containing additives and methods of making and using same
ETHYL CORP21 citations92
US6767871B2Jul 27, 2004
Diesel engine lubricants
ETHYL CORP17 citations83
US5628804AMay 13, 1997
Polyether esteramide containing additives and methods of making and using same
ETHYL CORP8 citations74
US5558683ASep 24, 1996
Mannich base derivatives, and the production and uses thereof
ETHYL CORP7 citations74
US5512067AApr 30, 1996
Asymmetrical mannich base derivatives and the production and uses thereof
ETHYL CORP8 citations74
US5387266AFeb 7, 1995
Mannich base derivatives, and the production and uses thereof
ETHYL CORP12 citations74
US6176886B1Jan 23, 2001
Middle distillate fuels with enhanced lubricity comprising the reaction product of a phenol formaldehyde resin, an aldehyde and an amino alcohol
ETHYL CORP13 citations71
LOPER JOHN T
3 patentsUS8980804B2Mar 17, 2015
Alkyl acrylate copolymer dispersants and uses thereof
LOPER JOHN T2 citations60
US8207099B2Jun 26, 2012
Lubricating oil composition for crankcase applications
LOPER JOHN T2 citations60
US8575390B2Nov 5, 2013
Branched succinimide dispersant compounds and methods of making the compounds
LOPER JOHN T0 citations50
AFTON CHEMICAL INTANGIBLES LLC
2 patentsDEVLIN MARK T
2 patentsGRIFFIN PAUL G
1 patentHUANG CHENTE
1 patentMATHUR NARESH
1 patentDEGONIA DAVID J
1 patentShowing the top 50 of 52 patents by PatentIndex Score.