Jurgen Lewalter

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Cologne, DT

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Patents Grantslast 30 patents

Information Patent Grant
Melt coating composition and coating process
- Patent number 4,096,291
- Issue date Jun 20, 1978
- Bayer Aktiengesellschaft
- Willi Dunwald
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Asymmetric, semipermeable membranes of cyclic polyureas
- Patent number 4,045,337
- Issue date Aug 30, 1977
- Bayer Aktiengesellschaft
- Birger Knickel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of polyhydantoins and polyparanic acids
- Patent number 4,005,056
- Issue date Jan 25, 1977
- Bayer Aktiengesellschaft
- Willi Dunwald
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of compounds which contain hydantoin gr...
- Patent number 3,966,683
- Issue date Jun 29, 1976
- Bayer Aktiengesellschaft
- Rudolf Merten
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of compounds which contain hydantoin rings
- Patent number 3,939,122
- Issue date Feb 17, 1976
- Bayer Aktiengesellschaft
- Rudolf Merten
- C07 - ORGANIC CHEMISTRY