Paulus Alexander Maria Grotenhuis

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Amsterdam, NL

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Patents Grantslast 30 patents

Information Patent Grant
Process for purification of starting materials for metal catalyzed...
- Patent number 5,777,035
- Issue date Jul 7, 1998
- Shell Oil Company
- Cornelis Martinus Van Dijk
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for purification of starting materials for metal catalyzed...
- Patent number 5,693,726
- Issue date Dec 2, 1997
- Shell Oil Company
- Cornelis Martinus Van Dijk
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for coagulation finishing of polymers
- Patent number 5,665,858
- Issue date Sep 9, 1997
- Shell Oil Company
- Cornelis Martinus Van Dijk
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Recovery of transition metals from aqueous solutions
- Patent number 4,880,546
- Issue date Nov 14, 1989
- Shell Oil Company
- Brian L. Goodall
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Manufacture of macrocyclic polyethers
- Patent number 4,435,582
- Issue date Mar 6, 1984
- Shell Oil Company
- Wilhelmus J. Krijnen
- C07 - ORGANIC CHEMISTRY