Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Christopher E. Wittner — 26 Patents

Chevron: 14 patents #313 of 4,788Top 7%
PPPhillips Petroleum: 12 patents #191 of 2,260Top 9%
Bartlesville, OK: #66 of 1,143 inventorsTop 6%
Oklahoma: #283 of 12,736 inventorsTop 3%
Overall (All Time): #150,017 of 4,157,543Top 4%
26 Patents All Time
Christopher E. Wittner has been granted 26 US patents while listed as an inventor at Chevron. The first was granted in 2000 and the most recent in July 2025. Christopher E. Wittner ranks #150,017 of 4,157,543 US inventors in our database (top 3.6%). Patent records list Christopher E. Wittner in Bartlesville, OK, US.

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12365746 Aqueous methods for titanating a chromium/silica catalyst with an alkali metal Anand Ramanathan, Max P. McDaniel, Jared L. Barr, Andrew T. Blagg, Alan L. Solenberger +2 more 2025-07-22
12269911 Aqueous methods for titanating a chromium/silica catalyst with an alkali metal Anand Ramanathan, Max P. McDaniel, Jared L. Barr, Andrew T. Blagg, Alan L. Solenberger +2 more 2025-04-08
12240964 Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications Errun Ding, Chung Ching Tso, Max P. McDaniel, Ashish M. Sukhadia, Youlu Yu +2 more 2025-03-04
12077627 Aqueous methods for titanating a chromium/silica catalyst with an alkali metal Anand Ramanathan, Max P. McDaniel, Jared L. Barr, Andrew T. Blagg, Alan L. Solenberger +2 more 2024-09-03
12031022 Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications Errun Ding, Chung Ching Tso, Max P. McDaniel, Ashish M. Sukhadia, Youlu Yu +2 more 2024-07-09
11339279 Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications Errun Ding, Chung Ching Tso, Max P. McDaniel, Ashish M. Sukhadia, Youlu Yu +2 more 2022-05-24
9040642 Catalyst systems containing a bridged metallocene Richard M. Buck, Qing Yang, Albert P. Masino 2015-05-26
9040643 Bridged metallocene catalyst systems with switchable hydrogen and comonomer effects Richard M. Buck, Qing Yang, Albert P. Masino 2015-05-26
8637616 Bridged metallocene catalyst systems with switchable hydrogen and comonomer effects Richard M. Buck, Qing Yang, Albert P. Masino 2014-01-28
8609793 Catalyst systems containing a bridged metallocene Richard M. Buck, Qing Yang, Albert P. Masino 2013-12-17
8492498 Polymer compositions for rotational molding applications Richard M. Buck, Albert P. Masino, Qing Yang, Paul J. DesLauriers, Steven J. Secora +3 more 2013-07-23
7763561 Compositions that can produce polymers Max P. McDaniel, Elizabeth A. Benham, Shirley J. Martin, Kathy S. Collins, James L. Smith +2 more 2010-07-27
7601665 Compositions that can produce polymers Max P. McDaniel, Elizabeth A. Benham, Shirley J. Martin, Kathy S. Collins, James L. Smith +2 more 2009-10-13
7547754 Organometal compound catalyst Max P. McDaniel, Kathy S. Collins, Gil R. Hawley, Michael D. Jensen, Elizabeth A. Benham +4 more 2009-06-16
7417097 Organometal compound catalyst Youlu Yu, Max P. McDaniel, Kathy S. Collins, Gil R. Hawley, Michael D. Jensen +4 more 2008-08-26 $233,881,000
7109277 Polymerization catalysts Gil R. Hawley, Max P. McDaniel, Michael D. Jensen, Joel L. Martin, Elizabeth A. Benham +2 more 2006-09-19 $195,528,000
6878785 Organometal compound catalyst Max P. McDaniel, Kathy S. Collins, Gil R. Hawley, Michael D. Jensen, Elizabeth A. Benham +2 more 2005-04-12 $67,009,000
6833338 Organometal compound catalyst Max P. McDaniel, Kathy S. Collins, Gil R. Hawley, Michael D. Jensen, Elizabeth A. Benham +4 more 2004-12-21 $126,742,000
6831141 Process for producing polymers Max P. McDaniel, Elizabeth A. Benham, Shirley J. Martin, Kathy S. Collins, James L. Smith +2 more 2004-12-14 $136,580,000
6667274 Polymerization catalysts Gil R. Hawley, Max P. McDaniel, Michael D. Jensen, Joel L. Martin, Elizabeth A. Benham +2 more 2003-12-23 $87,528,000
6573344 Propylene polymerization process Gil R. Hawley, Max P. McDaniel, Michael D. Jensen 2003-06-03 $64,557,000
6548442 Organometal compound catalyst Max P. McDaniel, Kathy S. Collins, Gil R. Hawley, Michael D. Jensen, Elizabeth A. Benham +2 more 2003-04-15 $61,998,000
6524987 Organometal catalyst compositions Kathy S. Collins, Syriac J. Palackal, Max P. McDaniel, Michael D. Jensen, Gil R. Hawley +4 more 2003-02-25 $94,053,000
6316553 Process for producing polymers using a composition comprising an organometal compound, a treated solid oxide compound, and an organoaluminum compound Max P. McDaniel, Kathy S. Collins, Marvin M. Johnson, James L. Smith, Elizabeth A. Benham +2 more 2001-11-13 $150,943,000
6300271 Compositions that can produce polymers Max P. McDaniel, Elizabeth A. Benham, Shirley J. Martin, Kathy S. Collins, James L. Smith +2 more 2001-10-09 $182,777,000