James R. Stephens

Person

Naperville, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Melt-processable polymeric materials based on 5-t-butylisophthalic
- Patent number 4,895,928
- Issue date Jan 23, 1990
- Amoco Corporation
- David J. Fenoglio
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Copolyoxadiazole-imide containing 5-tertiary butyl phenylene moiety
- Patent number 4,501,880
- Issue date Feb 26, 1985
- Standard Oil Company (Indiana)
- James R. Stephens
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Co-polyoxadiazoles based on 5-t-butylisosphthalic acid
- Patent number 4,500,701
- Issue date Feb 19, 1985
- Standard Oil Company (Indiana)
- James R. Stephens
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyoxadiazole from 5-t-butylisophthalic acid
- Patent number 4,487,921
- Issue date Dec 11, 1984
- Standard Oil Company (Indiana)
- James R. Stephens
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Poly-imide-oxadiazole soluble in m-cresol
- Patent number 4,476,295
- Issue date Oct 9, 1984
- Standard Oil Company (Indiana)
- James R. Stephens
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Poly[N,N'-(alkyl or aryl)-bis(4,4'-phthalimido)-1,3,4-oxadiazole-2,...
- Patent number 4,429,108
- Issue date Jan 31, 1984
- Standard Oil Company (Indiana)
- James R. Stephens
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Injection moldable amide-imide copolymers
- Patent number 4,358,561
- Issue date Nov 9, 1982
- Standard Oil Company (Indiana)
- Robert G. Keske
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Injection moldable amide-imide copolymers and terpolymers
- Patent number 4,348,513
- Issue date Sep 7, 1982
- Standard Oil Company (Indiana)
- Robert G. Keske
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Injection moldable amide-imide polymers contaning divalent aliphati...
- Patent number 4,323,493
- Issue date Apr 6, 1982
- Standard Oil Company (Indiana)
- Robert G. Keske
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Injection moldable amide-imide polymers containing divalent aliphat...
- Patent number 4,321,357
- Issue date Mar 23, 1982
- Standard Oil Company (Indiana)
- Robert G. Keske
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Injection moldable amide-imide copolymers
- Patent number 4,309,528
- Issue date Jan 5, 1982
- Standard Oil Company (Indiana)
- Robert G. Keske
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Injection moldable amide imide copolymers and terpolymers
- Patent number 4,291,149
- Issue date Sep 22, 1981
- Standard Oil Company (Indiana)
- Robert G. Keske
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Esterification of phenol catalyzed with a strong base plus boron
- Patent number 4,271,311
- Issue date Jun 2, 1981
- Standard Oil Company (Indiana)
- William W. Knickmeyer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of solid polymers from aromatic primary diamine and acy...
- Patent number 4,048,144
- Issue date Sep 13, 1977
- Standard Oil Company (Indiana)
- James R. Stephens
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing amideimide polymers in the presence of alcoho...
- Patent number 4,045,407
- Issue date Aug 30, 1977
- Standard Oil Company (Indiana)
- Robert G. Keske
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Products and process for preparation of polyamides and shaped artic...
- Patent number 4,042,750
- Issue date Aug 16, 1977
- Standard Oil Company (Indiana)
- Robert B. Hanson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Self-bonding varnish for magnet wires comprising a polyalkylenetrim...
- Patent number 4,012,556
- Issue date Mar 15, 1977
- Standard Oil Company (Indiana)
- Robert G. Keske
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing polyamide-imide from trimellitic acid, diamin...
- Patent number 3,959,233
- Issue date May 25, 1976
- Standard Oil Company (Indiana)
- Robert B. Hanson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

James R. Stephens

Person

Patents Grantslast 30 patents

Melt-processable polymeric materials based on 5-t-butylisophthalic

Copolyoxadiazole-imide containing 5-tertiary butyl phenylene moiety

Co-polyoxadiazoles based on 5-t-butylisosphthalic acid

Polyoxadiazole from 5-t-butylisophthalic acid

Poly-imide-oxadiazole soluble in m-cresol

Poly[N,N'-(alkyl or aryl)-bis(4,4'-phthalimido)-1,3,4-oxadiazole-2,...

Injection moldable amide-imide copolymers

Injection moldable amide-imide copolymers and terpolymers

Injection moldable amide-imide polymers contaning divalent aliphati...

Injection moldable amide-imide polymers containing divalent aliphat...

Injection moldable amide-imide copolymers

Injection moldable amide imide copolymers and terpolymers

Esterification of phenol catalyzed with a strong base plus boron

Preparation of solid polymers from aromatic primary diamine and acy...

Process for preparing amideimide polymers in the presence of alcoho...

Products and process for preparation of polyamides and shaped artic...

Self-bonding varnish for magnet wires comprising a polyalkylenetrim...

Process for preparing polyamide-imide from trimellitic acid, diamin...