Martin Wienkenhover

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Leverkusen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for improving the adherency of metallic coatings deposited...
- Patent number 5,182,135
- Issue date Jan 26, 1993
- Bayer Aktiengesellschaft
- Henning Giesecke
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
New polyisocyanate-polyaddition compounds, a process for their prep...
- Patent number 4,929,705
- Issue date May 29, 1990
- Bayer Aktiengesellschaft
- Jan Mazanek
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Pigment preparations
- Patent number 4,909,853
- Issue date Mar 20, 1990
- Bayer Aktiengesellschaft
- Martin Wienkenhover
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of naphthalene-1,8-dicarboximides
- Patent number 4,892,950
- Issue date Jan 9, 1990
- Bayer Aktiengesellschaft
- Detlef-Ingo Schutze
- C07 - ORGANIC CHEMISTRY