Fred Sonnenberg

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Fort Worth, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Processes for preparing patterns for use in metal castings
- Patent number 6,710,094
- Issue date Mar 23, 2004
- StyroChem Delaware, Inc.
- Fred Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Processes for forming styrene/methyl methacrylate copolymers
- Patent number 6,502,621
- Issue date Jan 7, 2003
- StyroChem Delaware, Inc.
- Fred Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Processes for forming styrenic copolymers
- Patent number 6,497,269
- Issue date Dec 24, 2002
- StyroChem Delaware, Inc.
- Fred Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Processes for forming styrenic copolymers
- Patent number 6,360,807
- Issue date Mar 26, 2002
- StyroChem Delaware, Inc.
- Fred Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Treatment for reducing residual carbon in the lost foam process
- Patent number 6,303,664
- Issue date Oct 16, 2001
- StyroChem Delaware, Inc.
- Fred Sonnenberg
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
Processes for preparing patterns for use in metal castings
- Publication number 20030141031
- Publication date Jul 31, 2003
- Fred Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Processes for forming styrene/methyl methacrylate copolymers
- Publication number 20020124983
- Publication date Sep 12, 2002
- Fred Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Processes for forming styrenic copolymers
- Publication number 20020088597
- Publication date Jul 11, 2002
- StyroChem Delaware, Inc.
- Fred Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Processes for forming styrenic copolymers
- Publication number 20010014701
- Publication date Aug 16, 2001
- Fred Sonnenberg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...