Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DD

David W. Dockter — 21 Patents

Chevron: 13 patents #351 of 4,788Top 8%
PPPhillips Petroleum: 8 patents #301 of 2,260Top 15%
The Woodlands, TX: #31 of 186 inventorsTop 20%
Texas: #6,491 of 125,132 inventorsTop 6%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
David W. Dockter has been granted 21 US patents while listed as an inventor at Chevron. The first was granted in 2001 and the most recent in December 2025. David W. Dockter ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list David W. Dockter in The Woodlands, TX, US.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12502656 Methods of chromium catalyst activation to reduce gels and improve melt index potential Max P. McDaniel, Zhi Liu Gu, Ted H. Cymbaluk, Anand Ramanathan, Julian Abrego +1 more 2025-12-23
12421331 Systems and methods for chromium catalyst activation Max P. McDaniel, Zhihui Gu, Ted H. Cymbaluk, Anand Ramanathan, Julian Abrego +3 more 2025-09-23
12403454 Methods of chromium catalyst activation to reduce gels and improve melt index potential Max P. McDaniel, Zhihui Gu, Ted H. Cymbaluk, Anand Ramanathan, Julian Abrego +1 more 2025-09-02
12325829 Solid oxide and chemically-treated solid oxide catalysts for the pyrolysis of polyethylene Max P. McDaniel, Kathy S. Clear 2025-06-10
12152199 Solid oxide and chemically-treated solid oxide catalysts for the pyrolysis of polyethylene Max P. McDaniel, Kathy S. Clear 2024-11-26
12091620 Systems and processes for processing pyrolysis oil Bruce D. Murray, Scott G. Morrison, Kenneth Fountain, Steven R. Horlacher, Vincent D. McGahee +1 more 2024-09-17
11939542 Systems and processes for processing pyrolysis oil Bruce D. Murray, Scott G. Morrison, Kenneth Fountain, Steven R. Horlacher, Vincent D. McGahee +1 more 2024-03-26
11920089 Solid oxide and chemically-treated solid oxide catalysts for the pyrolysis of polyethylene Max P. McDaniel, Kathy S. Clear 2024-03-05
11802250 Systems and processes for processing pyrolysis oil Bruce D. Murray, Scott G. Morrison, Kenneth Fountain, Steven R. Horlacher, Vincent D. McGahee +1 more 2023-10-31
9914676 Selective hydrogenation using a flow index Joseph Bergmeister, III, Tin-Tack Peter Cheung, Zongxuan Hong, Timothy O. Odi, Charles D. Nolidin +2 more 2018-03-13
9758446 Selective hydrogenation using a flow index Joseph Bergmeister, III, Tin-Tack Peter Cheung, Zongxuan Hong, Timothy O. Odi, Charles D. Nolidin +2 more 2017-09-12
9347139 Methods of removing a protective layer Dennis L. Holtermann, Tin-Tack Peter Cheung, Christopher D. Blessing, Lawrence E. Huff, Joseph Bergmeister, III +2 more 2016-05-24
8535448 Methods of removing a protective layer Dennis L. Holtermann, Tin-Tack Peter Cheung, Christopher D. Blessing, Lawrence E. Huff, Joseph Bergmeister, III +2 more 2013-09-17
6992035 Metallocenes, polymerization catalyst systems, their preparation, and use M. Bruce Welch, Syriac J. Palackal, Bryan E. Hauger, Alexander Koppl, Helmut G. Alt 2006-01-31 $149,100,000
6620776 Detergent additive composition and processes therefore and therewith Mitchell D. Refvik 2003-09-16 $170,954,000
6509427 Metallocenes, polymerization catalyst systems, their preparation, and use M. Bruce Welch, Syriac J. Palackal, Bryan E. Hauger, Alexander Koppl, Helmut G. Alt 2003-01-21 $88,130,000
6506721 Detergent additive composition and processes therefore and therewith Mitchell D. Refvik 2003-01-14 $92,403,000
6384161 Method and catalyst system for producing polyolefins with broadened molecular weight distributions M. Bruce Welch, Syriac J. Palackal, Bryan E. Hauger, David C. Rohlfing 2002-05-07 $74,087,000
6239060 Supported metallocene catalyst system and method for polymerizing olefins Bryan E. Hauger, M. Bruce Welch, Randall S. Muninger 2001-05-29 $39,207,000
6221981 Method for making and using a supported metallcene catalyst system Michael E. Jung, Helmut G. Alt, Bryan E. Hauger, M. Bruce Welch, Syriac J. Palackal +1 more 2001-04-24 $71,526,000
6187880 Process for producing an olefin polymer using a metallocene M. Bruce Welch, Syriac J. Palackal, Bryan E. Hauger, Alexander Koppl, Helmut G. Alt 2001-02-13 $24,304,000