Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Mark C. Gentry — 4 Patents

ExxonMobil: 2 patents #3,942 of 10,161Top 40%
BTBaker Oil Tools: 1 patents #43 of 87Top 50%
Spring, TX: #630 of 2,039 inventorsTop 35%
Texas: #33,915 of 125,132 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Mark C. Gentry has been granted 4 US patents while listed as an inventor at ExxonMobil. The first was granted in 1988 and the most recent in October 2015. Mark C. Gentry ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Mark C. Gentry in Spring, TX, US.

Patents per Year

Patents granted per year, 1988 to 2015Bar chart with a peak of 1 patents in 1988.peak 11988: 1 patents19882005: 1 patents20052013: 1 patents20132015: 1 patents2015

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9163465 System and method for drilling a well that extends for a large horizontal distance Stuart R. Keller, Adel H. Younan, Timothy J. Nedwed, Bruce A. Dale 2015-10-20
8448673 Transporting and transferring fluid Mark A. Danaczko, Robert E. Sandstrom 2013-05-28 $122,864,000
6915856 Apparatus and methods for preventing axial movement of downhole tool assemblies Timothy J. Hall, Kevin H. Searles, William A. Sorem, Scott R. Clingman 2005-07-12 $282,039,000
4754812 Dual string packer method and apparatus 1988-07-05 $7,317,000