JK

Johannes J. Keijsper

Shell Oil Compny: 20 patents #118 of 4,423Top 3%
Overall (All Time): #211,992 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
6307095 Process for the preparation of vinylesters Jean-Paul Lange, Brendan Dermot Murray 2001-10-23
5436214 Polymerization process 1995-07-25
5420236 Process for the preparation of copolymers Arleen Marie Bradford, André Johann Buys 1995-05-30
5369075 Polymerization process Eit Drent 1994-11-29
5340787 Polymerization process 1994-08-23
5275799 Process for preparing a crystalline zeolite Munro MACKAY 1994-01-04
5245123 Vapor phase polymerization of co/olefin with palladium compound, Lewis acid and bidentate ligand Eit Drent 1993-09-14
5243079 Hexakis phosphine catalyst Alexander W. van der Made, Petrus W. N. M. Van Leeuwen 1993-09-07
5243026 Continuous gas phase polymerization of CO/olefin with palladium and metal fluoride Lewis acid catalyst Pieter A. Gautier, Rudolf Jacobus Wijngaarden 1993-09-07
5237047 Polymerization of CO/olefin wth catalyst chemically bound to particles of support 1993-08-17
5229343 Polymerization process Alexander W. van der Made 1993-07-20
5227464 Gas phase polymerization of CO/olefin with particular catalyst support 1993-07-13
5225523 Polyketone polymer preparation with tetra alkyl bis phosphine ligand and hydrogen Eit Drent 1993-07-06
5218085 Preparation of high molecular weight carbon monoxide/styrene copolymers Abe Wiebe De Jong 1993-06-08
5216120 Polymerization of co/olefin with catalyst comprising palladium compound, Lewis acid and Bronsted acid Eit Drent 1993-06-01
5212135 Polymerization process Alexander W. van der Made, Petrus W. N. M. Van Leeuwen 1993-05-18
5210178 Gas phase polyketone polymer preparation with preliminary addition of water 1993-05-11
5171832 Polymerization of carbon monoxide/olefin with P bidentate ligand having (1) alkoxy phenyl P group and (2) monosubstituted divalent bridging group Alexander W. van der Made 1992-12-15
5169926 Polymerization of carbon monoxide/olefin with hexakis phosphine ligand Alexander W. van der Made, Petrus W. N. M. Van Leeuwen 1992-12-08
5147840 Catalyst compositions Abe Wiebe De Jong 1992-09-15
5008094 Crystalline (metallo)silicates and process for preparing such (metallo)silicates Munro MACKAY, Martin Post 1991-04-16