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

David S. Mays

DTDiversified Technologies: 3 patents #4 of 30Top 15%
PTPyramid Technologies: 1 patents #2 of 4Top 50%
Mentor, OH: #133 of 709 inventorsTop 20%
Ohio: #15,837 of 73,341 inventorsTop 25%
Overall (All Time): #1,001,560 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8931970 Ticket printer Leif Strom 2015-01-13
6648325 Compact stacker mechanism Martin D. Lingo 2003-11-18
5641157 Secure currency stacker box and apparatus incorporating the same Robert E. Blevins 1997-06-24
5547062 Universal currency acceptor Robert E. Blevins 1996-08-20
5533605 Paper currency handling apparatus including a cash box securement and access device Robert E. Blevins 1996-07-09