Darrell W. Brownawell

Person

Scotch Plains, NJ, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method of reducing sludge and varnish precursors in lubricating oils
- Patent number 5,478,463
- Issue date Dec 26, 1995
- Exxon Chemical Patents Inc.
- Darrell W. Brownawell
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Method for removing polynuclear aromatics from used lubricating oils
- Patent number 5,225,081
- Issue date Jul 6, 1993
- Exxon Research and Engineering Co.
- Darrell W. Brownawell
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method of removing hydroperoxides from lubricating oils using sodiu...
- Patent number 5,209,839
- Issue date May 11, 1993
- Exxon Research and Engineering Co.
- Harold Shaub
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Method for reducing piston deposits
- Patent number 5,164,101
- Issue date Nov 17, 1992
- Exxon Research and Engineering Co.
- Darrell W. Brownawell
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Polymeric amides for multifunctional VI improvers
- Patent number 5,156,758
- Issue date Oct 20, 1992
- Exxon Research and Engineering Company
- Warren A. Thaler
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Filter for removing hydroperoxides from lubricating oils
- Patent number 5,112,482
- Issue date May 12, 1992
- Exxon Research and Engineering Company
- Harold Shaub
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Method for rejuvenating lubricating oils
- Patent number 5,069,799
- Issue date Dec 3, 1991
- Exxon Research and Engineering Company
- Darrell W. Brownawell
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Method for reducing piston deposits
- Patent number 5,068,044
- Issue date Nov 26, 1991
- Exxon Research and Engineering Company
- Darrell W. Brownawell
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Method of reducing the presence of sludge in lubricating oils
- Patent number 5,042,617
- Issue date Aug 27, 1991
- Exxon Research and Engineering Company
- Darrell W. Brownawell
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Method of removing hydroperoxides from lubricating oils
- Patent number 4,997,546
- Issue date Mar 5, 1991
- Exxon Research and Engineering Company
- Harold Shaub
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Removal of carcinogenic hydrocarbons from used lubricating oil usin...
- Patent number 4,977,871
- Issue date Dec 18, 1990
- Exxon Chemical Patents, Inc.
- Darrell W. Brownawell
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Alkylphenols and derivatives thereof via phenol alkylation by crack...
- Patent number 4,973,764
- Issue date Nov 27, 1990
- Exxon Research and Engineering Company
- Alexis A. Oswald
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Alkylphenols and derivatives thereof via phenol alkylation by crack...
- Patent number 4,914,246
- Issue date Apr 3, 1990
- Exxon Research and Engineering Company
- Alexis A. Oswald
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for reducing piston deposits
- Patent number 4,906,389
- Issue date Mar 6, 1990
- Exxon Research and Engineering Company
- Darrell W. Brownawell
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Succinimide lubricating oil dispersant
- Patent number 4,686,054
- Issue date Aug 11, 1987
- Exxon Research and Engineering Co.
- Max J. Wisotsky
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Lubricant oil composition with improved friction reducing properties
- Patent number 4,684,473
- Issue date Aug 4, 1987
- Exxon Research and Engineering Company
- Jan Bock
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Ethylene copolymer viscosity index improver-dispersant additive use...
- Patent number 4,632,769
- Issue date Dec 30, 1986
- Exxon Research and Engineering Co.
- Antonio Gutierrez
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Alkylthiomethyl substituted mono-oxazolines
- Patent number 4,584,386
- Issue date Apr 22, 1986
- Exxon Research and Engineering Co.
- Antonio Gutierrez
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for inhibiting deposit formation in structures confining hyd...
- Patent number 4,569,750
- Issue date Feb 11, 1986
- Exxon Research and Engineering Co.
- Darrell W. Brownawell
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Ethylene copolymer viscosity index improver-dispersant additive use...
- Patent number 4,557,847
- Issue date Dec 10, 1985
- Exxon Research and Engineering Co.
- Antonio Gutierrez
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyisobutylene process
- Patent number 4,558,170
- Issue date Dec 10, 1985
- Exxon Research and Engineering Co.
- Frank J. Chen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ethylene copolymer viscosity index improver-dispersant additive use...
- Patent number 4,517,104
- Issue date May 14, 1985
- Exxon Research and Engineering Co.
- Ricardo Bloch
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Lubricating oil composition
- Patent number 4,502,970
- Issue date Mar 5, 1985
- Exxon Research and Engineering Co.
- Alan A. Schetelich
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Lubricating additive for drilling muds
- Patent number 4,491,524
- Issue date Jan 1, 1985
- Exxon Research and Engineering Co.
- Antonio Gutierrez
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Copper complexes of oxazolines and lactone oxazolines as lubricatin...
- Patent number 4,486,326
- Issue date Dec 4, 1984
- Exxon Research and Engineering Co.
- Antonio Gutierrez
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Oxazolines of 2-(alkylthio)succinic acids as an additive for drilli...
- Patent number 4,431,551
- Issue date Feb 14, 1984
- Exxon Research and Engineering Co.
- Antonio Gutierrez
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Additive composition for release of stuck drill pipe
- Patent number 4,427,564
- Issue date Jan 24, 1984
- Exxon Research and Engineering Co.
- Darrell W. Brownawell
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Co-dispersant stabilized friction modifier lubricating oil composition
- Patent number 4,388,201
- Issue date Jun 14, 1983
- Exxon Research and Engineering Co.
- Darrell W. Brownawell
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Drilling fluids containing an additive composition
- Patent number 4,382,002
- Issue date May 3, 1983
- Exxon Research and Engineering Co.
- Thad O. Walker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Lubricating oil composition containing a dispersing-varnish inhibit...
- Patent number 4,173,540
- Issue date Nov 6, 1979
- Exxon Research and Engineering Co.
- Thor F. Lonstrup
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Darrell W. Brownawell

Person

Patents Grantslast 30 patents

Method of reducing sludge and varnish precursors in lubricating oils

Method for removing polynuclear aromatics from used lubricating oils

Method of removing hydroperoxides from lubricating oils using sodiu...

Method for reducing piston deposits

Polymeric amides for multifunctional VI improvers

Filter for removing hydroperoxides from lubricating oils

Method for rejuvenating lubricating oils

Method for reducing piston deposits

Method of reducing the presence of sludge in lubricating oils

Method of removing hydroperoxides from lubricating oils

Removal of carcinogenic hydrocarbons from used lubricating oil usin...

Alkylphenols and derivatives thereof via phenol alkylation by crack...

Alkylphenols and derivatives thereof via phenol alkylation by crack...

Method for reducing piston deposits

Succinimide lubricating oil dispersant

Lubricant oil composition with improved friction reducing properties

Ethylene copolymer viscosity index improver-dispersant additive use...

Alkylthiomethyl substituted mono-oxazolines

Method for inhibiting deposit formation in structures confining hyd...

Ethylene copolymer viscosity index improver-dispersant additive use...

Polyisobutylene process

Ethylene copolymer viscosity index improver-dispersant additive use...

Lubricating oil composition

Lubricating additive for drilling muds

Copper complexes of oxazolines and lactone oxazolines as lubricatin...

Oxazolines of 2-(alkylthio)succinic acids as an additive for drilli...

Additive composition for release of stuck drill pipe

Co-dispersant stabilized friction modifier lubricating oil composition

Drilling fluids containing an additive composition

Lubricating oil composition containing a dispersing-varnish inhibit...