Paul Birnbirch

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Solingen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Polyether ester carbonates
- Patent number 6,660,826
- Issue date Dec 9, 2003
- Cognis Deutschland GmbH & Co. KG
- Paul Birnbirch
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...