Johannes Henricus J.H. Mennen

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Meijel, NL

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Patents Grantslast 30 patents

Information Patent Grant
Method for concentrating an aqueous ammonium carbamate stream
- Patent number 7,893,298
- Issue date Feb 22, 2011
- Stamicarbon B.V.
- Johannes Henricus J. H. Mennen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of melamine
- Patent number 7,534,883
- Issue date May 19, 2009
- DSM IP Assets B.V.
- Johannes Henricus J. H. Mennen
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Method for concentrating an aqueous ammonium carbamate stream
- Publication number 20090069597
- Publication date Mar 12, 2009
- Johannes Henricus J.H. Mennen
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process For The Preparation Of Melamine
- Publication number 20080119650
- Publication date May 22, 2008
- Johannes Henricus J.H. Mennen
- C07 - ORGANIC CHEMISTRY