Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ryoya OKUMA — 2 Patents

ALAlpha: 2 patents #51 of 110Top 50%
Yokohama, JP: #26,468 of 49,234 inventorsTop 55%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Ryoya OKUMA has been granted 2 US patents while listed as an inventor at Alpha. The first was granted in 2019 and the most recent in August 2022. Ryoya OKUMA ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Ryoya OKUMA in Yokohama, JP.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11421450 Door handle device for vehicle 2022-08-23
10508477 Handle device and manufacturing method of handle device 2019-12-17