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USPTO Patent Rankings Data through Dec 31, 2025
KM

Kent E. Mitchell — 20 Patents

PPPhillips Petroleum: 13 patents #182 of 2,260Top 9%
Chevron: 7 patents #678 of 4,788Top 15%
Bartlesville, OK: #105 of 1,143 inventorsTop 10%
Oklahoma: #426 of 12,736 inventorsTop 4%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Kent E. Mitchell has been granted 20 US patents while listed as an inventor at Phillips Petroleum. The first was granted in 1991 and the most recent in July 2024. Kent E. Mitchell ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Kent E. Mitchell in Bartlesville, OK, US.

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12024479 Methods for operating ethylene oligomerization reactor systems with an integrated ultrasonic flow meter Bruce E. Kreischer, Kendall M. Hurst, Eric D. Schwerdtfeger, Steven M. Bischof, Jared T. Fern +1 more 2024-07-02
11753356 Methods for operating ethylene oligomerization reactor systems with an integrated ultrasonic flow meter Bruce E. Kreischer, Kendall M. Hurst, Eric D. Schwerdtfeger, Steven M. Bischof, Jared T. Fern +1 more 2023-09-12
11572324 Methods for operating ethylene oligomerization reactor systems with an integrated ultrasonic flow meter Bruce E. Kreischer, Kendall M. Hurst, Eric D. Schwerdtfeger, Steven M. Bischof, Jared T. Fern +1 more 2023-02-07
7432339 Inferred water analysis in polyphenylene sulfide production 2008-10-07
7312300 Inferred water analysis in polyphenylene sulfide production 2007-12-25
6852660 Solid metallocene catalyst system Gary L. Glass, L. Kirchman, Robert Provence, Leigh Ford, Randall S. Muninger 2005-02-08
6534609 Method for making and using a metallocene catalyst system Gary L. Glass, L. Kirchman, Robert Provence, Leigh Ford, Randall S. Muninger 2003-03-18
6197899 Olefin polymerization Max P. McDaniel, M. Bruce Welch, Elizabeth A. Benham, Grover W. Cone 2001-03-06 $73,460,000
6153100 Removing iron salts from NGL streams 2000-11-28 $45,697,000
5985783 Prepolymerized catalyst and use thereof 1999-11-16 $43,866,000
5746908 Crude oil desalting process 1998-05-05 $31,882,000
5275992 Olefin polymerization Max P. McDaniel, M. Bruce Welch, Elizabeth A. Benham, Grover W. Cone 1994-01-04 $7,325,000
5244990 Prepolymerized catalyst and use thereof 1993-09-14 $6,200,000
5237117 Potassium carbonate supports, catalysts, and olefin dimerization processes therewith Paul F. Schubert, Ralph E. Bonnell, Norman L. Freeman, Jr., Denton C. Fentress, Richard E. Lowery +1 more 1993-08-17 $8,703,000
5235011 Polyolefin polymerization process, method of producing catalyst, and catalyst David Miller, Don W. Godbehere, Gil R. Hawley 1993-08-10 $8,878,000
5213785 Continuous antimony pentoxide production Denton C. Fentress, Don W. Godbehere, Larry S. Maddox, Richard E. Lowery, Howard F. Efner 1993-05-25 $17,717,000
5206314 Polyolefin polymerization process, process of producing catalyst, and catalyst Paul F. Schubert, Gil R. Hawley 1993-04-27 $12,019,000
5202298 Process for preparing carbonate supports and catalysts Paul F. Schubert, Ralph E. Bonnell, Norman L. Freeman, Jr., Denton C. Fentress, Richard E. Lowrey +2 more 1993-04-13 $11,800,000
5151397 Method of producing metal halide catalyst Stanley J. Marwil 1992-09-29 $6,866,000
4988655 Polyolefin polymerization catalyst and method of production use Gil R. Hawley, Don W. Godbehere 1991-01-29 $5,217,000