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USPTO Patent Rankings Data through Dec 31, 2025
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John David Penton — 7 Patents

Chevron: 4 patents #1,084 of 4,788Top 25%
TATas: 2 patents #4 of 5Top 80%
Pasadena, TX: #43 of 297 inventorsTop 15%
Texas: #21,608 of 125,132 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
John David Penton has been granted 7 US patents while listed as an inventor at Chevron. The first was granted in 2005 and the most recent in October 2014. John David Penton ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list John David Penton in Pasadena, TX, US.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8863516 System for collecting concentrated solar radiation 2014-10-21 $127,689,000
8867907 Reservoir fluid heating devices and methods of heating 2014-10-21 $127,689,000
8371153 Apparatus and method for purging gases released from a heat exchanger Ronald W. Hill 2013-02-12 $97,170,000
8297355 Using heat from produced fluids of oil and gas operations to produce energy Walt D. Hamilton, Karl Kolthoff, Timothy M. Veale, Jerry Lomax, David W. Bowers +3 more 2012-10-30
7827791 Advanced power recovery and energy conversion systems and methods of using same Tom L. Pierson 2010-11-09
7287381 Power recovery and energy conversion systems and methods of using same Tom L. Pierson 2007-10-30
6964168 Advanced heat recovery and energy conversion systems for power generation and pollution emissions reduction, and methods of using same Tom L. Pierson 2005-11-15