Inventor

BROWNAWELL DARRELL W

US35 patents

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

BROWNAWELL DARRELL W

EXXON RESEARCH ENGINEERING CO

Method for removing polynuclear aromatics from used lubricating oils

Method for rejuvenating lubricating oils

Succinimide lubricating oil dispersant

Method for reducing piston deposits

Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions

Method of reducing the presence of sludge in lubricating oils

Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions

Method for reducing piston deposits

Method for reducing piston deposits

Alkylphenols and derivatives thereof via phenol alkylation by cracked petroleum distillates

Ethylene copolymer viscosity index improver-dispersant additive useful in oil compositions

Polyisobutylene process

Filter for removing hydroperoxides from lubricating oils

Lubricating oil composition

Lubricating oil composition containing a dispersing-varnish inhibiting combination of an oxazoline compound and an acyl nitrogen compound

Lubricating oil composition containing a dispersing-varnish inhibiting combination of polyol ester compound and a borated acyl nitrogen compound

Copper complexes of oxazolines and lactone oxazolines as lubricating oil additives

Alkylphenols and derivatives thereof via phenol alkylation by cracked petroleum distillates

Additive composition for release of stuck drill pipe

Lubricating additive for drilling muds

Co-dispersant stabilized friction modifier lubricating oil composition

Drilling fluids containing an additive composition

Lubricant oil composition with improved friction reducing properties

Method of removing hydroperoxides from lubricating oils using sodium hydroxide and a metal thiophosphate

Method of removing hydroperoxides from lubricating oils

Polymeric amides for multifunctional VI improvers

Method for inhibiting deposit formation in structures confining hydrocarbon fluids

Oxazolines of 2-(alkylthio)succinic acids as an additive for drilling muds

Alkylthiomethyl substituted mono-oxazolines

EXXON CHEMICAL PATENTS INC

Method of reducing sludge and varnish precursors in lubricating oils

Removal of carcinogenic hydrocarbons from used lubricating oil using activated carbon

LUTEK LLC

Materials and processes for reducing combustion by-products in a lubrication system for an internal combustion engine

Materials, filters, and systems for immobilizing combustion by-products and controlling lubricant viscosity

LOCKLEDGE SCOTT P

Materials and processes for reducing combustion by-products in a lubrication system for an internal combustion engine

LUTECK LLC

Oil filters containing strong base and methods of their use