Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Mathison — 4 Patents

Schlumberger Technology: 3 patents #1,967 of 7,293Top 30%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Wenatchee, WA: #71 of 245 inventorsTop 30%
Washington: #23,275 of 76,902 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
David Mathison has been granted 4 US patents while listed as an inventor at Schlumberger Technology. The first was granted in 1996 and the most recent in March 2007. David Mathison ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list David Mathison in Wenatchee, WA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7193525 Methods and apparatus for downhole inter-tool communication Shohachi Miyamae, Tetsuya Tanaka, David Santoso 2007-03-20 $94,980,000
6630890 Methods, systems and tools for borehole logging Tatsuki Endo, Jiro Takeda 2003-10-07 $31,834,000
6552665 Telemetry system for borehole logging tools Shohachi Miyamae, Tetsuya Tanaka 2003-04-22 $30,927,000
PP9707 `Lucky Rose Golden` Apple tree Melvin Ohrazda 1996-11-26