Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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David Charles Fleck — 2 Patents in 2021

WCWacom Co.: 2 patents #18 of 97Top 20%
Vancouver, WA: #55 of 267 inventorsTop 25%
Washington: #2,358 of 13,672 inventorsTop 20%
Overall (2021): #169,621 of 548,734Top 35%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11144140 System and method for bidirectional communication between stylus and stylus sensor controller Sadao Yamamoto 2021-10-12
11003260 Stylus and sensor control circuit Sadao Yamamoto 2021-05-11