Membership
Tour
Register
Log in
Rudolf Jacobus Wijngaarden
Follow
Person
Amsterdam, NL
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Process for the extraction of material from multi-phase systems
Patent number
6,043,299
Issue date
Mar 28, 2000
Shell Oil Company
Rudolf Jacobus Wijngaarden
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the preparation of a copolymer of carbon monoxide
Patent number
5,747,638
Issue date
May 5, 1998
Shell Oil Company
Eit Drent
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the copolymerization of carbon monoxide with an olefini...
Patent number
5,741,939
Issue date
Apr 21, 1998
Shell Oil Company
Frank Baardman
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Preparation of catalyst solution
Patent number
5,684,123
Issue date
Nov 4, 1997
Shell Oil Company
Frits Van Der Veer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the copolymerization of carbon monoxide with an olefini...
Patent number
5,670,611
Issue date
Sep 23, 1997
Shell Oil Company
Frank Baardman
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the copolymerization of carbon monoxide with an olefini...
Patent number
5,668,249
Issue date
Sep 16, 1997
Shell Oil Company
Frank Baardman
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the copolymerization of carbon monoxide with an olefini...
Patent number
5,658,982
Issue date
Aug 19, 1997
Shell Oil Company
Frank Baardman
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Preparation of catalyst solution
Patent number
5,654,250
Issue date
Aug 5, 1997
Shell Oil Company
Frits Van Der Veer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Continuous gas phase polymerization of CO/olefin with palladium and...
Patent number
5,243,026
Issue date
Sep 7, 1993
Shell Oil Company
Pieter A. Gautier
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the separation of colloidal barium phosphate or colloid...
Patent number
5,175,374
Issue date
Dec 29, 1992
Shell Oil Company
Rudolf J. Wijngaarden
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of polyketone polymers in the presence...
Patent number
5,169,927
Issue date
Dec 8, 1992
Shell Oil Company
Johannes A. M. Van Broekhoven
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Alkoxylation process catalyzed by sodium- or potassium barium phosp...
Patent number
5,162,589
Issue date
Nov 10, 1992
Shell Oil Company
Rudolf J. Wijngaarden
C07 - ORGANIC CHEMISTRY