Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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David James Stein — 2 Patents in 2017

COCognex: 2 patents #10 of 58Top 20%
Purlear, NC: #1 of 1 inventorsTop 100%
North Carolina: #1,020 of 5,755 inventorsTop 20%
Overall (2017): #158,863 of 506,227Top 35%
2 Patents 2017

Issued Patents 2017

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9811702 Optical accessory for attachment to mobile device Michael F. Gifford, Steven Kearns, John Bryan Boatner 2017-11-07
9747482 Aimer accessory for capturing a coded image Micheal L. Gifford 2017-08-29