Manfred Hajek

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Cologne, DT

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Patents Grantslast 30 patents

Information Patent Grant
Urea or carbonamide containing diisocyanate polyaddition products w...
- Patent number 4,028,306
- Issue date Jun 7, 1977
- Bayer Aktiengesellschaft
- Kuno Wagner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Urethane oxazolidines
- Patent number 4,002,601
- Issue date Jan 11, 1977
- Bayer Aktiengesellschaft
- Manfred Hajek
- C07 - ORGANIC CHEMISTRY