Edgar Bohm

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Patents Grantslast 30 patents

Information Patent Grant
Polyimide film from pyromellitic dianhydride and a bis (4-aminophen...
- Patent number 5,856,432
- Issue date Jan 5, 1999
- E. I. DuPont de Nemours and Company
- Brian Carl Auman
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide alignment film from 2,2-BIS (3,4-dicarboxyphenyl)--hexafl...
- Patent number 5,759,442
- Issue date Jun 2, 1998
- E. I. Du Pont de Nemours and Company
- Brian Carl Auman
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide film from pyromellitic dianhydride and a bis(4-aminopheno...
- Patent number 5,731,404
- Issue date Mar 24, 1998
- E. I. Du Pont de Nemours and Company
- Brian Carl Auman
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide films from pyromellitic dianhydride and 2-2'-bis(perfluor...
- Patent number 5,670,609
- Issue date Sep 23, 1997
- E. I. Du Pont de Nemours and Company
- Brian Carl Auman
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Poly(2,6-piperazinedione) alignment layer for liquid crystal displays
- Patent number 5,520,845
- Issue date May 28, 1996
- E. I. Du Pont de Nemours and Company
- Brian C. Auman
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...