Hans Keller
2Patents
2h-index
3Co-inventors
30Inventor score
Filing activity: Oct 1, 1976 → Nov 21, 1979
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4110826A | Apparatus and process for color-identification | Physics | 33 | Expired |
| US4267455A | Purification apparatus | Chemistry; Metallurgy | 21 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.