Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JC

Jo Ann M. Canich — 174 Patents

ExxonMobil: 172 patents #6 of 10,161Top 1%
UTUnivation Technologies: 1 patents #199 of 289Top 70%
Chevron: 1 patents #2,615 of 4,788Top 55%
Houston, TX: #9 of 21,073 inventorsTop 1%
Texas: #127 of 125,132 inventorsTop 1%
Overall (All Time): #4,562 of 4,157,543Top 1%
174 Patents All Time

Issued Patents All Time

Showing 126–150 of 174 patents

Patent #TitleCo-InventorsDate
7037989 Copolymers of ethylene and/or α-olefins and vicinally disubstituted olefins Smita Kacker, Enock Berluche, Timothy D. Shaffer 2006-05-02
6984722 Cationic group 3 catalyst system Joseph N Christopher, Kevin R. Squire, Timothy D. Shaffer 2006-01-10
6812184 Supported late transition metal catalyst systems George Alan Vaughan, Phillip T. Matsunaga, David E. Gindelberger, Kevin R. Squire 2004-11-02
6677441 Cationic group 3 catalyst system Joseph N Christopher, Kevin R. Squire, Timothy D. Shaffer 2004-01-13
6638887 Monocyclopentadienyl metal compounds for ethylene-&agr;-olefin-copolymer production catalysts 2003-10-28
6632898 Monocyclopentadienyl titanium metal compounds for ethylene-&agr;-olefin-copolymer production catalysts 2003-10-14
6617466 Monocylopentadienyl transition metal olefin polymerization catalysts 2003-09-09
6492473 Mixed transition metal catalyst systems for olefin polymerization George Alan Vaughan, Phillip T. Matsunaga, David E. Gindelberger, Timothy D. Shaffer, Kevin R. Squire 2002-12-10
6455458 Tethered monocyclopentadienyl polymerization catalysts 2002-09-24
6423795 Tetramethylcyclopentadienyl titanium compounds for ethylene-&agr;-olefin-copolymer production catalysts Howard W. Turner, Gregory G. Hlatky 2002-07-23
RE37788 Monocyclopentadienyl metal compounds for ethylene-&agr;-olefin-copolymer production catalysts 2002-07-09
6403773 Cationic group 3 catalyst system Joseph N Christopher, Kevin R. Squire, Timothy D. Shaffer 2002-06-11
6355592 Catalyst system of enhanced productivity and its use in polymerization process Gregory G. Hlatky, Howard W. Turner 2002-03-12
6300451 Long-chain branched polymers and their production Aspy K. Mehta, Charles S. Speed, Norbert Baron, Bernard J. Folie, Makoto Sugawara +2 more 2001-10-09
RE37400 Monocyclopentadienyl titanium metal compounds for ethylene-.alpha.-olefin-copolymer production catalysts 2001-10-02
6294625 Catalyst system of enhanced productivity and its use in polymerization process George G. Hlatky, Howard W. Turner 2001-09-25
6265338 Monocyclopentadienyl titanium metal compounds for ethylene-.alpha.-olefin copolymer production catalysts 2001-07-24
6255410 Process for polymerizing olefinic feeds under pressure Hayashi Shigekauzu, Makoto Sugawara, Norbert Baron, Charles Stanley Speed, Howard C. Welborn, Jr. 2001-07-03
6194341 Mixed transition metal catalyst systems for olefin polymerization George Alan Vaughan, Phillip T. Matsunaga, David E. Gindelberger, Timothy D. Shaffer, Kevin R. Squire 2001-02-27
6160066 Monocyclopentadienyl metal compounds for ethylene-.alpha.-olefin-copolymer production catalysts 2000-12-12
6127497 Elevated pressure polymerization processes with late transition metal catalyst systems Phillip T. Matsunaga, George Alan Vaughan, David E. Gindelberger, Rinaldo S. Schiffino, Kevin R. Squire +1 more 2000-10-03
6114477 Polymerization process Natalie A. Merrill, Armenag H. Dekmezian, Richard B. Pannell, Charles J. Ruff 2000-09-05
5955625 Monocyclopentadienyl metal compounds for ethylene-.alpha.-olefin-copolymer production catalysts 1999-09-21
5866665 Copolymers of ethylene and germinally disubstituted olefins Timothy D. Shaffer, Kevin R. Squire 1999-02-02
5863853 Polymerization catalyst systems, their production and use George Alan Vaughan, Anthony N. Speca, Patrick Brant 1999-01-26