Katsutoshi Sumitani
5Patents
2h-index
13Co-inventors
44Inventor score
Filing activity: Sep 23, 2002 → Jun 4, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7823931B2 | Tubular threaded joint | Mechanical Engineering; Lighting; Heating | 17 | Active |
| US6698802B2 | Pipe joint | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US9568126B2 | Threaded joint for steel pipe | Chemistry; Metallurgy | 2 | Active |
| US6755444B2 | Slim-type threaded joint for oil well pipes | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US9205441B2 | Coating apparatus for applying a UV curable resin to a threaded end of a steel pipe | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.