Inventor
GEERTS ROLF L
US34 patents
⚠️ This page may combine multiple inventors who share the name “GEERTS ROLF L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PHILLIPS PETROLEUM CO
31 patentsUS5594078AJan 14, 1997
Process for producing broad molecular weight polyolefin
PHILLIPS PETROLEUM CO169 citations99
US5565592AOct 15, 1996
Vinly-substituted bridged metallocenes
PHILLIPS PETROLEUM CO171 citations99
US5466766ANov 14, 1995
Metallocenes and processes therefor and therewith
PHILLIPS PETROLEUM CO136 citations99
US5436305AJul 25, 1995
Organometallic fluorenyl compounds, preparation, and use
PHILLIPS PETROLEUM CO213 citations99
US5399636AMar 21, 1995
Metallocenes and processes therefor and therewith
PHILLIPS PETROLEUM CO243 citations99
US5534473AJul 9, 1996
Catalyst systems for producing broad molecular weight polyolefin
PHILLIPS PETROLEUM CO105 citations98
US5401817AMar 28, 1995
Olefin polymerization using silyl-bridged metallocenes
PHILLIPS PETROLEUM CO146 citations98
US5627247AMay 6, 1997
Organometallic fluorenyl compounds and use thereof in olefin polymerization
PHILLIPS PETROLEUM CO60 citations96
US5496781AMar 5, 1996
Metallocene catalyst systems, preparation, and use
PHILLIPS PETROLEUM CO103 citations96
US5480848AJan 2, 1996
Catalyst composition and the use in olefin polymerization
PHILLIPS PETROLEUM CO76 citations96
US5414180AMay 9, 1995
Organo-aluminoxy product and use
PHILLIPS PETROLEUM CO98 citations95
US6828268B1Dec 7, 2004
Polymerization catalyst systems and processes using alkyl lithium compounds as a cocatalyst
PHILLIPS PETROLEUM CO28 citations92
US5670589ASep 23, 1997
Organoaluminoxy product, catalyst systems, preparation, and use
PHILLIPS PETROLEUM CO21 citations92
US5610247AMar 11, 1997
Unbridged metallocenes of 9-substituted fluorenyl compounds and use thereof
PHILLIPS PETROLEUM CO38 citations92
US5480948AJan 2, 1996
Olefin polymerization process
PHILLIPS PETROLEUM CO43 citations92
US5436212AJul 25, 1995
Organoaluminoxy product, preparation, and use
PHILLIPS PETROLEUM CO28 citations92
US5411925AMay 2, 1995
Organo-aluminoxy product and use
PHILLIPS PETROLEUM CO22 citations92
US5354721AOct 11, 1994
Organo-aluminoxy product and use
PHILLIPS PETROLEUM CO21 citations92
US5616752AApr 1, 1997
Metallocenes and processes therefor and therewith
PHILLIPS PETROLEUM CO15 citations82
US5459218AOct 17, 1995
Syndiotactic polypropylene prepared using silyl bridged metallocenes
PHILLIPS PETROLEUM CO18 citations82
US6420579B1Jul 16, 2002
Organometallic fluorenyl compounds, preparation, and use
PHILLIPS PETROLEUM CO5 citations74
US6403734B1Jun 11, 2002
Organometallic fluorenyl compounds, preparation, and use
PHILLIPS PETROLEUM CO5 citations74
US6162936ADec 19, 2000
Organometallic fluorenyl compounds, preparation, and use
PHILLIPS PETROLEUM CO8 citations74
US5399622AMar 21, 1995
System of chromium catalyst and yttrium catalyst, olefin polymerization process, and polymer
PHILLIPS PETROLEUM CO5 citations74
US5244991ASep 14, 1993
Olefin polymerization process
PHILLIPS PETROLEUM CO13 citations74
US5583189ADec 10, 1996
Polymerization processes
PHILLIPS PETROLEUM CO6 citations72
US5962592AOct 5, 1999
Ethylene copolymer compositions
PHILLIPS PETROLEUM CO13 citations69
US7022781B2Apr 4, 2006
Polymerization catalyst systems and processes using alkyl lithium compounds as a cocatalyst
PHILLIPS PETROLEUM CO3 citations63
US5459203AOct 17, 1995
Ethylene cone-shell polymer powders
PHILLIPS PETROLEUM CO5 citations63
US5627118AMay 6, 1997
Silyl bridged metallocenes and use thereof
PHILLIPS PETROLEUM CO3 citations62
US6353071B1Mar 5, 2002
Processes to produce organo-aluminoxane compositions
PHILLIPS PETROLEUM CO1 citations52