Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ritsuo Ando — 1 Patent

NINipro: 1 patents #207 of 473Top 45%
Miyazaki, JP: #271 of 531 inventorsTop 55%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Ritsuo Ando has been granted 1 US patent while listed as an inventor at Nipro. All of these patents were granted in 2002. Ritsuo Ando ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Ritsuo Ando in Miyazaki, JP.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6433695 Liquid sensor and body fluid leak sensing device comprising the same Kazuo Kai, Shoichiro Fujino, Hiroshi Todoroki 2002-08-13