Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Mark L. Merrifield — 2 Patents

ExxonMobil: 2 patents #3,942 of 10,161Top 40%
Houston, TX: #8,734 of 21,073 inventorsTop 45%
Texas: #52,941 of 125,132 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Mark L. Merrifield has been granted 2 US patents while listed as an inventor at ExxonMobil. All of these patents were granted in 2016. Mark L. Merrifield ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Mark L. Merrifield in Houston, TX, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9400140 Cooling tower with automatic hydraulic balancing Philip Clayton Hicks 2016-07-26 $300,772,000
9346721 Hydrocarbon conversion Stephen M. Davis, Keith H. Kuechler, Loren K. Starcher 2016-05-24 $293,299,000