DS

Douglas W. Stephan

NS Nova Chemicals (International) S.A.: 8 patents #59 of 299Top 20%
GT Governing Council Of The University Of Toronto: 4 patents #39 of 760Top 6%
ST Stepan: 2 patents #85 of 221Top 40%
AG Arlanxeo Deutschland Gmbh: 2 patents #34 of 140Top 25%
UW University Of Windsor: 1 patents #12 of 75Top 20%
SB Sabic Global Technologies B.V.: 1 patents #849 of 1,595Top 55%
SB Sabic Innovative Plastics B.V.: 1 patents #445 of 817Top 55%
📍 Toronto, CA: #317 of 9,482 inventorsTop 4%
Overall (All Time): #235,621 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDate
11312677 Synthesis of building blocks and feedstocks for manufacturing renewable polymers Sarim Dastgir, Francesco Ferretti, Muhammad Sharif, Ralf Jackstell, Matthias Beller +1 more 2022-04-26
10253055 Ruthenium-based triazole carbene complexes Bidraha Bagh, Adam McKinty 2019-04-09
10005858 Boron-bridged 2-indenyl metallocene complexes for olefin polymerization Haif Al-Shammari, Yunshan Sun, Salah Al Hubish, Zhu Jiangtao 2018-06-26
9920086 Ruthenium-based complexes, their preparation and use as catalysts Clinton Lund, Michael Sgro, Fatme Dahcheh, Christopher Ong 2018-03-20
9828401 Ruthenium-based complex catalysts Julia Maria Jeschko, Clinton Lund, Michael Sgro, Christopher Ong, Renan Cariou 2017-11-28
9738671 Cyclic bent allene metal complexes Conor Pranckevicius 2017-08-22
9701703 Transition metal complexes, their preparation and use Clinton Lund, Adam McKinty, Christopher Ong, Michael Boone 2017-07-11
9156929 Bis(2-indenyl) metallocene complex Haif Al-Shammari, Jason Morton 2015-10-13
8642812 Frustrated Lewis pair compositions Gregory C. Welch, Jenny S. J. McCahill 2014-02-04
8299284 Frustrated lewis pair compositions Preston A. Chase, Gregory C. Welch 2012-10-30
6649558 Bis-phosphinimine catalyst Stephen John Brown, Xiaoliang Gao, Daryll G. Harrison, Ian McKay, Linda Koch +3 more 2003-11-18
6440890 Hydrocarbyl phosphinimine/cyclopentadienyl complexes of group IV metals and preparation thereof Rupert Edward von Haken Spence, Stephen John Brown, Ryan Wurz, Dusan Jeremic 2002-08-27
6355744 Cyclopentadienyl/phosphinimine catalyst with one and only one activatable ligand Rupert Edward von Haken Spence, Stephen John Brown, Dusan Jeremic, Qinyan Wang 2002-03-12
6342463 Polymerization catalyst having a phosphinimine ligand Jeff C. Stewart, Stephen John Brown, John William Swabey, Qinyan Wang 2002-01-29
6239238 Bis-phosphinimine catalyst Stephen John Brown, Xiaoliang Gao, Daryll G. Harrison, Ian McKay, Linda Koch +3 more 2001-05-29
6239061 Aluminum-phosphinimine complexes as catalysts for the (co)polymerization of ethylene Qinyan Wang, Xiaoliang Gao, John McMeeking, Wei Xu 2001-05-29
6063879 High temperature solution polymerization process with phosphinimine cyclopentadienyl metal (GRP IV) complex Jeff C. Stewart, Stephen John Brown, John William Swabey, Qinyan Wang 2000-05-16
5965677 Supported phosphinimine-Cp catalysts Jeff C. Stewart, Daryll G. Harrison 1999-10-12
5726335 Zirconium compounds, their preparation and their use as catalysts 1998-03-10