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USPTO Patent Rankings Data through Dec 31, 2025
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Arimitsu Ishii — 1 Patent

JEJfe Engineering: 1 patents #11 of 75Top 15%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Tokyo, JP: #57,845 of 90,295 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Arimitsu Ishii has been granted 1 US patent while listed as an inventor at Jfe Engineering. All of these patents were granted in 2006. Arimitsu Ishii ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Arimitsu Ishii in Tokyo, JP.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7029580 Apparatus for concentrating sludge Kiyoshi Suzuki, Kinichiro Kouno, Takashi Etou, Itaru Sakai, Satoru Udagawa 2006-04-18