Robert Adrianus Wilhelmus Grotenbreg

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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 6,716,788
- Issue date Apr 6, 2004
- Shell Oil Company
- Michiel Barend Eleveld
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymerizing alkylene oxide with sound or radiation treated DMC
- Patent number 6,596,842
- Issue date Jul 22, 2003
- Shell Oil Company
- Michiel Barend Eleveld
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Preparation of a double metal cyanide catalyst
- Publication number 20030236162
- Publication date Dec 25, 2003
- Michiel Barend Eleveld
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Double metal complex catalyst
- Publication number 20030212246
- Publication date Nov 13, 2003
- Michiel Barend Eleveld
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Double metal complex catalyst
- Publication number 20030023022
- Publication date Jan 30, 2003
- Michiel Barend Eleveld
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL