Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Dave Marshall — 7 Patents

TGTechnetics Group: 4 patents #5 of 43Top 15%
ESEcowater Systems: 1 patents #38 of 63Top 65%
Boylston, MA: #29 of 121 inventorsTop 25%
Massachusetts: #18,077 of 88,656 inventorsTop 25%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Dave Marshall has been granted 7 US patents while listed as an inventor at Technetics Group. The first was granted in 1996 and the most recent in May 2025. Dave Marshall ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Dave Marshall in Boylston, MA, US.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
12305756 Flexible seal assembly Michael P. Cenedella, Mark Whitlow, Bob Schricker, Caleb Garrison 2025-05-20
11953095 Flexible seal assembly Michael P. Cenedella, Mark Whitlow, Bob Schricker, Caleb Garrison 2024-04-09
11649733 Flexible seal assembly Michael P. Cenedella, Mark Whitlow, Bob Schricker, Caleb Garrison 2023-05-16
10890078 Flexible seal assembly Michael P. Cenedella, Mark Whitlow, Bob Schricker, Caleb Garrison 2021-01-12
9884352 Pipe cleaning apparatus, use, system, and method Randall Cooper, Kevin Lillie, John Hochfellner 2018-02-06
9339855 Projectile dispensing system and use John Hochfellner, Kevin Lillie 2016-05-17
5544072 Method for regeneration of a water softener Jeffrey Zimmerman, Gary W. Gauer 1996-08-06