Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Yoko Sato — 2 Patents

UNUnknown: 2 patents #12,644 of 83,584Top 20%
CCCosmo Oil Co.: 1 patents #111 of 229Top 50%
CICosmo Research Institute: 1 patents #48 of 93Top 55%
PIPola Chemical Industries: 1 patents #95 of 199Top 50%
Saitama, JP: #5,096 of 10,685 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Yoko Sato has been granted 2 US patents while listed as an inventor at Unknown. The first was granted in 1998 and the most recent in April 2005. Yoko Sato ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Yoko Sato in Saitama, JP.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6881841 Dibenzosuberanyl piperazine derivatives and drug-resistance overcoming agents containing the derivatives Tsutomu Takeuchi, Hiroaki Takayanagi, Seiki Kobayashi, Yumiko Osa, Yumiko Suzuki +2 more 2005-04-19
5824808 Cyclic phenol sulfide and process for producing the same Takashi Hori, Hitoshi Kumagai, Mitsuharu Hasegawa, Hiroshi Munakata, Yoshihiro Sugawa 1998-10-20