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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
MM

Mark A. Marshall — 7 Patents

TTTri Tool: 6 patents #6 of 31Top 20%
Stockton, CA: #37 of 477 inventorsTop 8%
California: #83,669 of 386,348 inventorsTop 25%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Mark A. Marshall has been granted 7 US patents while listed as an inventor at Tri Tool. The first was granted in 1990 and the most recent in August 2018. Mark A. Marshall ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Mark A. Marshall in Stockton, CA, US.

Patents per Year

Patents granted per year, 1990 to 2018Bar chart with a peak of 3 patents in 1999.peak 31990: 1 patents19901992: 1 patents19921998: 1 patents19981999: 3 patents19992018: 1 patents2018

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
10059181 High-tech cover 2018-08-28
5941145 Tube squaring tool Marty E. Pound 1999-08-24
5934688 Quick setting and release actuator for work holder Jerald VanderPol, Donald T. Stanley, Clement Tremblay 1999-08-10
D407724 Tube squaring tool Marty E. Pound 1999-04-06
5743539 Quick setting and release actuator for work holder Jerald VanderPol, Donald T. Stanley, Clement Tremblay 1998-04-28
5083484 Pipe end preparation tool having improved torque reacting and clamping capabilities Jerald VanderPol, Warren V. Wheeler 1992-01-28
4955263 Pipe end preparation tool having improved torque reacting and clamping capabilities Jerald VanderPol, Warren V. Wheeler 1990-09-11