P

Inventor

LIESEN GREGORY P

US9 patents
⚠️ This page may combine multiple inventors who share the name “LIESEN GREGORY P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ETHYL CORP

4 patents
US6323164B1Nov 27, 2001

Dispersant (meth) acrylate copolymers having excellent low temperature properties

ETHYL CORP191 citations97
US6255261B1Jul 3, 2001

(Meth) acrylate copolymer pour point depressants

ETHYL CORP33 citations91
US5009802AApr 23, 1991

Phenolic antioxidant composition

ETHYL CORP4 citations62
US5004481AApr 2, 1991

Fuel compositions containing sulfur-bridged phenolic antioxidants

ETHYL CORP3 citations62

ETHYL PETROLEUM ADDITIVES INC

2 patents
US4946610AAug 7, 1990

Sulfur-bridged phenolic antioxidants

ETHYL PETROLEUM ADDITIVES INC48 citations92
US5045089ASep 3, 1991

Fuel compositions containing phenolic antioxidants

ETHYL PETROLEUM ADDITIVES INC2 citations62

AFTON CHEMICAL CORP

2 patents
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

QUIST ARJAN

1 patent
US8191403B2Jun 5, 2012

Petroleum viscosity measurement and communication system and method

QUIST ARJAN2 citations50