Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Derrick B. Callander — 3 Patents

ExxonMobil: 3 patents #3,063 of 10,161Top 35%
Humble, TX: #158 of 498 inventorsTop 35%
Texas: #41,402 of 125,132 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Derrick B. Callander has been granted 3 US patents while listed as an inventor at ExxonMobil. The first was granted in 2016 and the most recent in August 2025. Derrick B. Callander ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Derrick B. Callander in Humble, TX, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12391892 Integration of polymeric waste co-processing in cokers to produce circular chemical products from coker gas oil Bryan A. Patel, Brenda A. Raich, Steven M. Slack, Eric M. Yucha, Fritz A. Bernatz +2 more 2025-08-19
12365839 Integration of polymeric waste co-processing in cokers to produce circular chemical products from coker gas Bryan A. Patel, Brenda A. Raich, Steven M. Slack, Eric M. Yucha, Fritz A. Bernatz +2 more 2025-07-22
9523044 Hydrocarbon upgrading Rodney S. Smith, Beshoy Abdelmalek, Mark A. Nierode, Michael Moran 2016-12-20 $291,553,000