William J. Trepka

Person

Bartlesville, OK, US

People

Patents Grantslast 30 patents

Information Patent Grant
Tapered block copolymers of monovinylarenes and conjugated dienes
- Patent number 6,265,484
- Issue date Jul 24, 2001
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Tapered block copolymers of monovinylarenes and conjugated dienes
- Patent number 6,265,485
- Issue date Jul 24, 2001
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Tapered block copolymers of monivinylarenes and conjugated dienes
- Patent number 5,910,546
- Issue date Jun 8, 1999
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Block copolymers of monovinylarenes and conjugated dienes and prepa...
- Patent number 5,705,569
- Issue date Jan 6, 1998
- Phillips Petroleum Company
- George A. Moczygemba
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Blends of copolymers of monovinylarenes and conjugated dienes conta...
- Patent number 5,587,425
- Issue date Dec 24, 1996
- Phillips Petroleum Company
- George A. Moczygemba
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Tapered block copolymers of monovinylarenes and conjugated dienes
- Patent number 5,545,690
- Issue date Aug 13, 1996
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Block copolymers of monovinylarenes and conjugated dienes and prepa...
- Patent number 5,436,298
- Issue date Jul 25, 1995
- Phillips Petroleum Company
- George A. Moczygemba
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for stabilizing monovinylarene/conjugated diene copolymers a...
- Patent number 5,422,389
- Issue date Jun 6, 1995
- Phillips Petroleum Company
- William J. Trepka
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Block copolymers of monovinylarenes and conjugated dienes containin...
- Patent number 5,399,628
- Issue date Mar 21, 1995
- Phillips Petroleum Company
- George A. Moczygemba
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Conjugated diene/monovinylarene copolymers and preparation thereof
- Patent number 5,384,349
- Issue date Jan 24, 1995
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Tapered block monovinyl aromatic/conjugated diene copolymer
- Patent number 5,319,033
- Issue date Jun 7, 1994
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Sequential coupling in formation of resinous block copolymers
- Patent number 5,270,396
- Issue date Dec 14, 1993
- Phillips Petroleum Company
- Ralph C. Farrar
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Tapered block copolymers of conjugated dienes and monovinylarenes
- Patent number 5,256,736
- Issue date Oct 26, 1993
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Tapered block styrene/butadiene copolymers
- Patent number 5,227,419
- Issue date Jul 13, 1993
- Phillips Petroleum Company
- George A. Moczygemba
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Tapered block styrene/butadiene copolymers
- Patent number 5,130,377
- Issue date Jul 14, 1992
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hydrocarbon fuels with carburetor detergent properties
- Patent number RE32533
- Issue date Oct 27, 1987
- Phillips Petroleum Company
- William J. Trepka
- 044 - Fuel and related compositions
Information Patent Grant
Treatment of a hydrogenated polymer solution after hydrogenation ca...
- Patent number 4,471,099
- Issue date Sep 11, 1984
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Viscosity index improver soluble in synthetic poly(.alpha.-olefin)...
- Patent number 4,418,234
- Issue date Nov 29, 1983
- Phillips Petroleum Company
- Sidney Schiff
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Viscosity index improver with high thickening power
- Patent number 4,412,087
- Issue date Oct 25, 1983
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Viscosity index improvers with dispersant properties prepared by re...
- Patent number 4,402,843
- Issue date Sep 6, 1983
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Viscosity index improvers with dispersant properties prepared by re...
- Patent number 4,402,844
- Issue date Sep 6, 1983
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Orthoesters as coupling agents for producing monovinylarene homopol...
- Patent number 4,297,464
- Issue date Oct 27, 1981
- Phillips Petroleum Co.
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Orthoesters as coupling agents for producing novel polymers
- Patent number 4,238,576
- Issue date Dec 9, 1980
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hydrocarbon fuels with carburetor detergent properties
- Patent number 4,238,202
- Issue date Dec 9, 1980
- Phillips Petroleum Company
- William J. Trepka
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Organo lithium initiator
- Patent number 4,158,098
- Issue date Jun 12, 1979
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hydrogenated lithiated copolymers grafted with organic nitrogen com...
- Patent number 4,145,298
- Issue date Mar 20, 1979
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Coupling of alkali metal-terminated polymers
- Patent number 4,105,714
- Issue date Aug 8, 1978
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Coupling lithium-initiated polymer with a vinylhalomethylarene
- Patent number 4,086,406
- Issue date Apr 25, 1978
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Treatment of coupled polymers prior to hydrogenation
- Patent number 4,076,915
- Issue date Feb 28, 1978
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymerization process for producing low cis-configuration homopoly...
- Patent number 3,948,872
- Issue date Apr 6, 1976
- Phillips Petroleum Company
- William J. Trepka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

William J. Trepka

Person

Patents Grantslast 30 patents

Tapered block copolymers of monovinylarenes and conjugated dienes

Tapered block copolymers of monovinylarenes and conjugated dienes

Tapered block copolymers of monivinylarenes and conjugated dienes

Block copolymers of monovinylarenes and conjugated dienes and prepa...

Blends of copolymers of monovinylarenes and conjugated dienes conta...

Tapered block copolymers of monovinylarenes and conjugated dienes

Block copolymers of monovinylarenes and conjugated dienes and prepa...

Method for stabilizing monovinylarene/conjugated diene copolymers a...

Block copolymers of monovinylarenes and conjugated dienes containin...

Conjugated diene/monovinylarene copolymers and preparation thereof

Tapered block monovinyl aromatic/conjugated diene copolymer

Sequential coupling in formation of resinous block copolymers

Tapered block copolymers of conjugated dienes and monovinylarenes

Tapered block styrene/butadiene copolymers

Tapered block styrene/butadiene copolymers

Hydrocarbon fuels with carburetor detergent properties

Treatment of a hydrogenated polymer solution after hydrogenation ca...

Viscosity index improver soluble in synthetic poly(.alpha.-olefin)...

Viscosity index improver with high thickening power

Viscosity index improvers with dispersant properties prepared by re...

Viscosity index improvers with dispersant properties prepared by re...

Orthoesters as coupling agents for producing monovinylarene homopol...

Orthoesters as coupling agents for producing novel polymers

Hydrocarbon fuels with carburetor detergent properties

Organo lithium initiator

Hydrogenated lithiated copolymers grafted with organic nitrogen com...

Coupling of alkali metal-terminated polymers

Coupling lithium-initiated polymer with a vinylhalomethylarene

Treatment of coupled polymers prior to hydrogenation

Polymerization process for producing low cis-configuration homopoly...