Andrew Michael Thomas — 6 Patents at Chevron

Andrew Michael Thomas has been granted 6 US patents while listed as an inventor at Chevron. The first was granted in 2018 and the most recent in August 2025. Andrew Michael Thomas ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Andrew Michael Thomas in El Sobrante, CA, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12391867	Olefin sulfonates	Curtis B. Campbell, Gayani W. Pinnawala, Varadarajan Dwarakanath, Andrew M. Davidson, Ping Wang	2025-08-19
12012547	Olefin sulfonate compositions	Gayani W. Pinnawala, Varadarajan Dwarakanath, Curtis B. Campbell, Andrew M. Davidson, Ping Wang	2024-06-18	$368,304,000
12012549	Methods of using olefin sulfonates	Varadarajan Dwarakanath, Gayani W. Pinnawala, Curtis B. Campbell, Andrew M. Davidson, Ping Wang	2024-06-18	$368,304,000
10844307	Method for preventing or reducing low speed pre-ignition in direct injected spark-ignited engines with manganesemanganese-containing lubricant	Ian G. Elliott, Amir Gamal Maria, Richard E. Cherpeck, Theresa Liang Gunawan	2020-11-24
10683460	Ethylene oligomerization process for making hydrocarbon liquids	Hye Kyung Cho Timken, Bong-Kyu Chang, Curtis B. Campbell, Mark Anthony Fernandez, Madeleine Sessions	2020-06-16
9938473	Ethylene oligomerization process for making hydrocarbon liquids	Hye Kyung Cho Timken, Bong-Kyu Chang, Curtis B. Campbell, Mark Anthony Fernandez, Madeleine Sessions	2018-04-10	$203,739,000

Andrew Michael Thomas — 6 Patents

Issued Patents All Time

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