Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert T. Li — 46 Patents

ExxonMobil: 41 patents #183 of 10,161Top 2%
CRCryovac: 4 patents #84 of 481Top 20%
ECEastman Chemical: 1 patents #797 of 1,245Top 65%
Houston, TX: #243 of 21,073 inventorsTop 2%
Texas: #1,985 of 125,132 inventorsTop 2%
Overall (All Time): #62,001 of 4,157,543Top 2%
46 Patents All Time
Robert T. Li has been granted 46 US patents while listed as an inventor at ExxonMobil. The first was granted in 2000 and the most recent in September 2021. Robert T. Li ranks #62,001 of 4,157,543 US inventors in our database (top 1.5%). Patent records list Robert T. Li in Houston, TX, US.

Issued Patents All Time

Showing 1–25 of 46 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11130828 Methods for supplying solid catalysts to a solution polymerization reactor Peijun Jiang, Jay L. Reimers 2021-09-28 $253,372,000
10544246 Methods for supplying solid catalysts to a solution polymerization reactor Peijun Jiang, Jay L. Reimers 2020-01-28 $178,907,000
7816447 Reactor systems and polymerization processes using multi-zone circulating reactors Kevin W. Lawson, Lawrence C. Smith, Randell Wayne Dickey, Prasadarao Meka 2010-10-19 $87,946,000
7638670 Methods for oligomerizing olefins David H. McConville, Lily Ackerman, Xiaohong Bei, Matthew C. Kuchta, Tom Boussie +11 more 2009-12-29 $238,270,000
7638671 Methods of oligomerizing olefins David H. McConville, Lily Ackerman, Xiaohong Bei, Matthew C. Kuchta, Tom Boussie +11 more 2009-12-29 $238,270,000
7425661 Methods for oligomerizing olefins David H. McConville, Lily Ackerman, Xiaohong Bei, Matthew C. Kuchta, Tom Boussie +11 more 2008-09-16 $339,001,000
7414006 Methods for oligomerizing olefins David H. McConville, Lily Ackerman, Xiaohong Bei, Matthew C. Kuchta, Tom Boussie +11 more 2008-08-19 $210,130,000
7297747 Polymerization process and polymer composition James R. Hart, William T. Haygood, Jr., Terry J. Burkhardt 2007-11-20 $251,145,000
7183234 Multi-donor catalyst system for the polymerization of olefins Kevin W. Lawson, Aspy K. Mehta, Prasadarao Meka 2007-02-27 $262,464,000
7157591 Metallocenes and catalyst compositions derived therefrom Terry J. Burkhardt, James R. Hart, William T. Haygood, Jr. 2007-01-02
7122498 Metallocenes and catalyst compositions derived therefrom James R. Hart, William T. Haygood, Jr., Terry J. Burkhardt 2006-10-17 $179,560,000
7081543 Bridged biscyclopentadienyl ligands and method of preparation Francis C. Rix, Terry J. Burkhardt, William T. Haygood, Jr. 2006-07-25 $264,722,000
6960676 Method of preparing group 14 bridged biscyclopentadienyl ligands Francis C. Rix, Terry J. Burkhardt, William T. Haygood, Jr. 2005-11-01 $555,809,000
6903229 Metallocene compositions Terry J. Burkhardt, Udo M. Stehling, James R. Hart, William T. Haygood, Jr., James Charles Vizzini +1 more 2005-06-07 $369,113,000
6894179 Metallocene compositions Matthew C. Kuchta, Udo M. Stehling, William T. Haygood, Jr., Terry J. Burkhardt 2005-05-17 $166,387,000
6888017 Metallocene compositions Matthew C. Kuchta, Udo M. Stehling, William T. Haygood, Jr., Terry J. Burkhardt 2005-05-03 $224,198,000
6870016 Polymerization process and polymer composition Terry J. Burkhardt, James R. Hart, William T. Haygood, Jr. 2005-03-22 $152,819,000
6825372 Metallocene compositions Terry J. Burkhardt, William T. Haygood, Jr., James Charles Vizzini, Matthew C. Kuchta, Udo M. Stehling +1 more 2004-11-30 $102,207,000
6809057 Chromium compounds and olefin polymerization processes utilizing them Zerong Lin, Anthony N. Speca, Stanley J. Katzen, David H. McConville 2004-10-26 $150,659,000
6576779 Catalyst compositions and processes for olefin polymers and copolymers Donald Albert Bansleben, Stefan Friedrich, Todd R. Younkin, Robert H. Grubbs, Chunming Wang 2003-06-10
6573345 Catalyst compositions and processes for olefin oligomerization and polymerization Donald Albert Bansleben, Stefan Friedrich, Todd R. Younkin, Robert H. Grubbs, Chunming Wang 2003-06-03
6492465 Propylene impact copolymers Terry J. Burkhardt, Aspy K. Mehta, Udo M. Stehling, William T. Haygood, Jr., Francis C. Rix +1 more 2002-12-10 $401,667,000
6472474 Propylene impact copolymers Terry J. Burkhardt, Aspy K. Mehta, Udo M. Stehling, William T. Haygood, Jr., Francis C. Rix +1 more 2002-10-29 $171,682,000
6414095 Metallocene compositions Terry J. Burkhardt, William T. Haygood, Jr., James Charles Vizzini, Matthew C. Kuchta, Udo M. Stehling +1 more 2002-07-02 $330,341,000
6410664 Catalyst compositions and processes for olefin polymers and copolymers Donald Albert Bansleben, Stefan Friedrich, Todd R. Younkin, Robert H. Grubbs, Chunming Wang 2002-06-25