Barry E. Heldman

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Cottage Grove, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Continuous process for the production of controlled architecture ma...
- Patent number 6,448,353
- Issue date Sep 10, 2002
- 3M Innovative Properties Company
- James Michael Nelson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Continuous process for the production of poly(1-alkenes)
- Patent number 5,644,007
- Issue date Jul 1, 1997
- Minnesota Mining and Manufacturing Company
- Robert S. Davidson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...