Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Scott E. Kufeld — 83 Patents

Chevron: 74 patents #21 of 4,788Top 1%
PPPhillips Petroleum: 5 patents #475 of 2,260Top 25%
The Woodlands, TX: #9 of 186 inventorsTop 5%
Texas: #662 of 125,132 inventorsTop 1%
Overall (All Time): #21,013 of 4,157,543Top 1%
83 Patents All Time
Scott E. Kufeld has been granted 83 US patents while listed as an inventor at Chevron. The first was granted in 1995 and the most recent in June 2025. Scott E. Kufeld ranks #21,013 of 4,157,543 US inventors in our database (top 0.51%). Patent records list Scott E. Kufeld in The Woodlands, TX, US.

Issued Patents All Time

Showing 1–25 of 83 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12319774 Particle size control of silyl chromate catalysts and uses thereof in fluidized bed reactors Max P. McDaniel, Eric D. Schwerdtfeger, Jeffrey S. Lowell 2025-06-03
12252558 Multiple reactor and multiple zone polyolefin polymerization Joseph A. Curren, Rebecca A. Gonzales, Joel A. Mutchler, Eric J. Netemeyer, Jamie N. Sutherland +2 more 2025-03-18
12195562 Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactor Joel A. Mutchler, Eric J. Netemeyer, Joseph A. Curren, Michael H. Treptau, Kenneth A. Dooley +2 more 2025-01-14
12115506 Catalyst slurry mixing process and system James E. Hein 2024-10-15
11969725 Reactor jacket design Anurag Gupta, Larry W. Ezell, Robert R. McElvain, Robert F. Parrott, Joel A. Mutchler 2024-04-30
11845815 Multiple reactor and multiple zone polyolefin polymerization Joseph A. Curren, Rebecca A. Gonzales, Joel A. Mutchler, Eric J. Netemeyer, Jamie N. Sutherland +2 more 2023-12-19
11845814 Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactor Joel A. Mutchler, Eric J. Netemeyer, Joseph A. Curren, Michael H. Treptau, Kenneth A. Dooley +2 more 2023-12-19
11833479 Catalyst slurry mixing process and system James E. Hein 2023-12-05
11767378 Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactor Joel A. Mutchler, Eric J. Netemeyer, Joseph A. Curren, Michael H. Treptau, Kenneth A. Dooley +2 more 2023-09-26
11667738 Metallocene catalyst systems with chemically-treated solid oxides for producing ethylene-based plastomers and elastomers Max P. McDaniel 2023-06-06
11548957 Multiple reactor and multiple zone polyolefin polymerization Joseph A. Curren, Rebecca A. Gonzales, Joel A. Mutchler, Eric J. Netemeyer, Jamie N. Sutherland +2 more 2023-01-10
11478768 Reactor jacket design Anurag Gupta, Larry W. Ezell, Robert R. McElvain, Robert F. Parrott 2022-10-25
11466108 Metallocene catalyst systems with chemically-treated solid oxides for producing ethylene-based plastomers and elastomers Max P. McDaniel 2022-10-11
11466104 Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactor Joel A. Mutchler, Eric J. Netemeyer, Joseph A. Curren, Michael H. Treptau, Kenneth A. Dooley +2 more 2022-10-11
11326003 Metallocene catalyst systems with chemically-treated solid oxides for producing ethylene-based plastomers and elastomers Max P. McDaniel, Kenneth A. Dooley 2022-05-10
11312797 Systems and methods for polyethylene recovery with low volatile content Kenneth A. Dooley, Jeffrey S. Lowell, Joseph A. Curren 2022-04-26
11186662 Metallocene catalyst systems with chemically-treated solid oxides for producing ethylene-based plastomers and elastomers Max P. McDaniel 2021-11-30
10947331 Multiple reactor and multiple zone polyolefin polymerization Joseph A. Curren, Rebecca A. Gonzales, Joel A. Mutchler, Eric J. Netemeyer, Jamie N. Sutherland +2 more 2021-03-16
10913046 Cooling between multiple polyolefin polymerization reactors Maruti Bhandarkar, Elizabeth Ann Benham, Rebecca A. Gonzales, Joel A. Mutchler, Catherine M. Gill +2 more 2021-02-09
10858458 Multiple reactor and multiple zone polyolefin polymerization Joseph A. Curren, Rebecca A. Gonzales, Joel A. Mutchler, Eric J. Netemeyer, Jamie N. Sutherland +2 more 2020-12-08
10844147 Multiple reactor and multiple zone polyolefin polymerization Joseph A. Curren, Rebecca A. Gonzales, Joel A. Mutchler, Eric J. Netemeyer, Jamie N. Sutherland +2 more 2020-11-24
10844148 Multiple reactor and multiple zone polyolefin polymerization Joseph A. Curren, Rebecca A. Gonzales, Joel A. Mutchler, Eric J. Netemeyer, Jamie N. Sutherland +2 more 2020-11-24
10799847 Polyolefin production with multiple polymerization reactors Maruti Bhandarkar, Elizabeth Ann Benham, Rebecca A. Gonzales, Joel A. Mutchler, Catherine M. Gill +2 more 2020-10-13
10781273 Multiple reactor and multiple zone polyolefin polymerization Joseph A. Curren, Rebecca A. Gonzales, Joel A. Mutchler, Eric J. Netemeyer, Jamie N. Sutherland +2 more 2020-09-22
10774161 Systems and methods for polyethylene recovery with low volatile content Kenneth A. Dooley, Jeffrey S. Lowell, Joseph A. Curren 2020-09-15