Marcel Petinaux

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Krefeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the production of polynuclear aromatic polyamines
- Patent number 4,924,028
- Issue date May 8, 1990
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of multinuclear aromatic polyamines
- Patent number 4,914,236
- Issue date Apr 3, 1990
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for purifying polyisocyanates and the polyisocyanates thus...
- Patent number 4,774,357
- Issue date Sep 27, 1988
- Bayer Aktiengesellschaft
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of polyisocyanates
- Patent number 4,745,216
- Issue date May 17, 1988
- Bayer Aktiengesellschaft
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of polyisocyanates
- Patent number 4,405,527
- Issue date Sep 20, 1983
- Bayer Aktiengesellschaft
- Gerhard Wegener
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aromatic uretdione-diisocyanate-disulphonic acids
- Patent number 4,176,118
- Issue date Nov 27, 1979
- Bayer Aktiengesellschaft
- Marcel Petinaux
- C07 - ORGANIC CHEMISTRY