Yutaka Sumida
3Patents
2h-index
16Co-inventors
34Inventor score
Filing activity: Oct 14, 1976 → Feb 3, 1978
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4214979A | Method of thermally cracking heavy petroleum oil | Chemistry; Metallurgy | 13 | Expired |
| US4085034A | Method for the thermal cracking of heavy hydrocarbon | Chemistry; Metallurgy | 9 | Expired |
| US4147753A | Apparatus for the thermal cracking of heavy hydrocarbon | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.