Helga Heinze

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Cologne, DE

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Patents Grantslast 30 patents

Information Patent Grant
Water-soluble cationic oligourethane resins and the use thereof for...
- Patent number 4,187,074
- Issue date Feb 5, 1980
- Bayer Aktiengesellschaft
- Harro Traubel
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Grant
Tanning with carboxylic acid carrying ester, urethane and/or amide...
- Patent number 4,126,413
- Issue date Nov 21, 1978
- Bayer Aktiengesellschaft
- Harro Traubel
- C14 - SKINS HIDES PELTS LEATHER