Ronald Van Kempen

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Amsterdam, NL

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Patents Grantslast 30 patents

Information Patent Grant
Preparation of a double metal cyanide catalyst
- Patent number 6,977,236
- Issue date Dec 20, 2005
- Shell Oil Company
- Michiel Barend Eleveld
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Preparation of a double metal cyanide catalyst
- Patent number 6,716,788
- Issue date Apr 6, 2004
- Shell Oil Company
- Michiel Barend Eleveld
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
DMC complex catalyst and process for its preparation
- Patent number 6,699,961
- Issue date Mar 2, 2004
- Shell Oil Company
- Michiel Barend Eleveld
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Macromer stabiliser precursor for polymer polyols
- Patent number 6,403,667
- Issue date Jun 11, 2002
- Shell Oil Company
- Michiel Barend Eleveld
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Dmc complex catalyst and process for its preparation
- Publication number 20030069389
- Publication date Apr 10, 2003
- Michiel Barend Eleveld
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...