SD

Steven P. Diefenbach

AL Albemarle: 26 patents #5 of 439Top 2%
ET Ethyl: 12 patents #37 of 494Top 8%
WC W.R. Grace & Co.-Conn.: 1 patents #543 of 1,045Top 55%
Overall (All Time): #82,948 of 4,157,543Top 2%
39
Patents All Time

Issued Patents All Time

Showing 25 most recent of 39 patents

Patent #TitleCo-InventorsDate
10221264 Activator compositions, their preparation, and their use in catalysts Min Li, Matthew G. Thorn, Lubin Luo 2019-03-05
9090720 Aluminoxane catalyst activators containing carbocation agents, and use thereof in polyolefin catalysts Lubin Luo, Xiao Wu 2015-07-28
8575284 Aluminoxane catalyst activators derived from dialkylaluminum cation precursor agents, processes for making same, and use thereof in catalysts and polymerization of olefins Lubin Luo, Samuel A. Sangokoya, Xiao Wu, Brian Kneale 2013-11-05
8501655 Catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins Lubin Luo 2013-08-06
8354485 Aluminoxane catalyst activators derived from dialkylaluminum cation precursor agents, processes for making same, and use thereof in catalysts and polymerization of olefins Lubin Luo, Samuel A. Sangokoya, Xiao Wu, Brian Kneale 2013-01-15
8088952 Ionic bronsted acid Lubin Luo, Zhike Wang, Xiao Wu 2012-01-03
7960488 Aluminoxane compositions, their preparation, and their use in catalysis Lubin Luo, Samuel A. Sangokoya, Jamie R. Strickler 2011-06-14
7928172 Catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins Lubin Luo, Katherine Wu 2011-04-19
7902390 Catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins Zhike Wang, Lubin Luo 2011-03-08
7897707 Catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins Lubin Luo, Zhike Wang 2011-03-01
7355058 Haloaluminoxane compositions, their preparation, and their use in catalysis Lubin Luo, Samuel A. Sangokoya, Jamie R. Strickler, Christopher G. Bauch 2008-04-08
7193100 Haloaluminoxane compositions, their preparation, and their use in catalysis Samuel A. Sangokoya, Lubin Luo, Jamie R. Strickler, Christopher G. Bauch 2007-03-20
6746981 Particulate group 4 metallocene-aluminoxane catalyst compositions devoid of preformed support, and their preparation and their use 2004-06-08
6730758 Particulate group 4 metallocene-aluminoxane catalyst compositions devoid of preformed support, and their preparation and their use 2004-05-04
6677265 Process of producing self-supported catalysts Brian Kneale, James E. Boone, Cecil P. Loechelt, John C. Prindle, Jr. 2004-01-13
6551955 Particulate group 4 metallocene-aluminoxane catalyst compositions devoid of preformed support, and their preparation and their use 2003-04-22
6521728 Particulate group 4 metallocene-aluminoxane catalyst compositions devoid of preformed support, and their preparation and their use 2003-02-18
6294496 Particulate group 4 metallocene-aluminoxane catalyst compositions devoid of preformed support, and their preparation and their use 2001-09-25
6248265 Clean generation of a fluoroaryl grignard reagent John Y. Lee, David W. Owens, Charles R. Everly, Ronny W. Lin, John M. Power +1 more 2001-06-19
6129863 Clean generation of a perfluoroaryl grignard reagent John Y. Lee, David W. Owens, Charles R. Everly, Ronny W. Lin, John M. Power +1 more 2000-10-10
6034024 Heat treated alumoxanes Niomi L. Krzystowczyk, Edward A. Burt 2000-03-07
5959151 Process for the purification of pentafluorophenyl boron compounds John Y. Lee, John M. Power, Ronny W. Lin 1999-09-28
5856255 Preparation of supported auxiliary catalysts at elevated temperature and pressure in a closed vessel Niomi L. Krzystowczyk, John Y. Lee 1999-01-05
5739368 Use of heat treated alumoxanes in preparing supported catalysts Niomi L. Krzystowczyk, Edward A. Burt 1998-04-14
5693261 Preparation of pentafluorophenyl compounds Niomi L. Krzystowczyk, Wendy L. Lemoine 1997-12-02