Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RK

Ryu Kawabe — 7 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Tama, JP: #102 of 402 inventorsTop 30%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Ryu Kawabe has been granted 7 US patents while listed as an inventor at Unknown. The first was granted in 1992 and the most recent in May 2000. Ryu Kawabe ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Ryu Kawabe in Tama, JP.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6062539 Valve gear and coupling mechanism for coupling the valve stem of the valve and the driving shaft of actuator Iwao Yokoyama 2000-05-16
6048124 Writing implement clip and writing implement equipped with the writing implement clip 2000-04-11
5842721 Paper sheet holder 1998-12-01
5573223 Method and apparatus for controlling the flow of fluids 1996-11-12
5462251 Method and apparatus for controlling the flow of fluids 1995-10-31
5372350 Method and apparatus for controlling the flow of fluids 1994-12-13
5095931 Method and apparatus for opening and closing multi-way valve 1992-03-17