Martien de Graaf
2Patents
2h-index
2Co-inventors
24Inventor score
Filing activity: Mar 21, 1990 → Jan 31, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5287651A | Apparatus for bulb plant cultivation | Human Necessities | 13 | Expired |
| US5060419A | Substrate for out-of-ground cultivation | Human Necessities | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.