Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ryuko Matsuda — 2 Patents

UNUnknown: 3 patents #7,366 of 83,584Top 9%
INInternational: 1 patents #41 of 85Top 50%
Tokyo, JP: #44,108 of 90,295 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Ryuko Matsuda has been granted 2 US patents while listed as an inventor at Unknown. The first was granted in 1998 and the most recent in December 2004. Ryuko Matsuda ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Ryuko Matsuda in Tokyo, JP.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6830896 Process for analyzing annexin-V in urine, and application thereof Noboru Kaneko, Tadahiro Kajita 2004-12-14
5767247 Anti-annexin-V monoclonal antibodies, and preparation and use thereof Noboru Kaneko, Tadahiro Kajita, Yohsuke Ohta 1998-06-16