HA

Helmut G. Alt

PP Phillips Petroleum: 78 patents #9 of 1,401Top 1%
P6 Phillips 66: 4 patents #69 of 327Top 25%
SI Saudi Basic Industries: 4 patents #89 of 474Top 20%
CO Conocophillips: 1 patents #472 of 954Top 50%
HL Hughes Electronics Limited: 1 patents #605 of 1,474Top 45%
WA Wacker Chemie Ag: 1 patents #641 of 1,324Top 50%
Overall (All Time): #16,891 of 4,157,543Top 1%
93
Patents All Time

Issued Patents All Time

Showing 25 most recent of 93 patents

Patent #TitleCo-InventorsDate
9234054 Process for the preparation of metallocene complexes Abdulaziz Hamad Al-Humydi, Atieh Aburaqabah, Christian Gorl 2016-01-12
9193814 Heterogeneous supports for homogeneous catalysts Matthias Dötterl, Roland Schmidt 2015-11-24
9115226 Heterogeneous supports for homogeneous catalysts Matthias Dötterl, Roland Schmidt 2015-08-25
9000200 Process for the preparation of metallocene complexes Abdulaziz Hamad Al-Humydi, Atieh Aburaqabah, Christian Gorl 2015-04-07
8816146 Organometallic complexes as catalyst precursors for selective olefin dimerization and processes therefor Tanja Englmann, Christine Denner, Roland Schmidt, Matthias Dötterl 2014-08-26
8580703 Additive component for the improvement of the performance of olefin polymerisation catalysts Tim Bast 2013-11-12
8487153 Selective olefin dimerization with supported metal complexes activated by alkylaluminum compounds or ionic liquids Matthias Dötterl, Roland Schmidt, Tanja Englmann, Christine Denner 2013-07-16
8420563 Catalyst complex and process for producing multimodal molecular weight polyolefins Syriac J. Palackal, Atieh Aburaqabah, Christian Goerl 2013-04-16
8304504 Catalyst precursor for the production of olefins with an odd number of carbons atoms, process for its preparation and production method for such olefins Marcus Seitz, Syriac J. Palackal, Atieh Abu-Raqabah 2012-11-06
7923396 Hydrocarbon conversion Ingrid Boehmer, M. Bruce Welch, Roland Schmidt, Bruce B. Randolph 2011-04-12
7230128 Organometallic fluorenyl compounds, preparations, and use Syriac J. Palackal, Konstantinos Patsidis, M. Bruce Welch, Rolf L. Geerts, Eric T. Hsieh +3 more 2007-06-12
6992035 Metallocenes, polymerization catalyst systems, their preparation, and use M. Bruce Welch, Syriac J. Palackal, Bryan E. Hauger, David W. Dockter, Alexander Koppl 2006-01-31
6531554 Metallocycle metallocenes and their use M. Bruce Welch 2003-03-11
6509427 Metallocenes, polymerization catalyst systems, their preparation, and use M. Bruce Welch, Syriac J. Palackal, Bryan E. Hauger, David W. Dockter, Alexander Koppl 2003-01-21
6482905 Unsymmetric unbridged bis-indenyl metallocenes and their use Roland Schmidt, Matthias Deppner, M. Bruce Welch 2002-11-19
6482967 Metallocenes, polymerization catalyst systems, their preparation, and use Alexander Koppl, M. Bruce Welch 2002-11-19
6475947 Oligomeric metallocenes and their use Erik Licht, M. Bruce Welch, Bryan E. Hauger 2002-11-05
6458905 Complexes of pyridldiimines with vanadium and other transition metals, and their use as olefin oligomerization and polymerization catalysts Roland Schmidt, Ulrich Hammon, M. Bruce Welch, Bryan E. Hauger, Ronald D. Knudsen 2002-10-01
6420579 Organometallic fluorenyl compounds, preparation, and use Syriac J. Palackal, Konstantinos Patsidis, M. Bruce Welch, Rolf L. Geerts, Eric T. Hsieh +3 more 2002-07-16
6403734 Organometallic fluorenyl compounds, preparation, and use Syriac J. Palackal, Konstantinos Patsidis, M. Bruce Welch, Rolf L. Geerts, Eric T. Hsieh +3 more 2002-06-11
6372930 Polymeric ligands, polymeric metallocenes, catalyst systems, preparation, and use Peter Schertl, M. Bruce Welch, Bernd Peifer, Syriac J. Palackal 2002-04-16
6358876 Organo-aluminum compounds immobilized on organopolysiloxane microgel particles Frank Baumann, Johann Weis, Alexander Koppl 2002-03-19
6340651 Multicyclic metallocycle metallocenes and their use Erik Licht, M. Bruce Welch 2002-01-22
6329312 Metallocycle metallocenes and their use Erik Licht, M. Bruce Welch 2001-12-11
6329541 Organo omega-alkenyl cyclopentacarbyl silane-bridged metallocene compounds Michael E. Jung, M. Bruce Welch 2001-12-11