Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DF

David G. Firth

MDModel & Instrument Development: 1 patents #4 of 14Top 30%
PDProsthetic Design: 1 patents #11 of 14Top 80%
Burnsville, MN: #104 of 632 inventorsTop 20%
Minnesota: #10,397 of 52,454 inventorsTop 20%
Overall (All Time): #739,105 of 4,157,543Top 20%
7 Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
9107613 Handheld scanning device Brendan O. Beardsley, John P. Pella 2015-08-18
D667010 Handheld scanner Brendan O. Beardsley 2012-09-11
8057551 Lanyard suspension system for a prosthetic limb Tracy C. Slemker, Scott R. Schall, Steven Steinbarger 2011-11-15
6601890 Cylinder lifting sling and method for making the same 2003-08-05
5252822 Contact wheel automated digitizer with visible sensing of marked reference points 1993-10-12
5066305 Prosthetic foot having a low profile cantilever spring keel 1991-11-19
D272731 Motorcycle fairing 1984-02-21