David Ryan
2Patents
2h-index
4Co-inventors
41Inventor score
Filing activity: Aug 26, 1977 → Aug 1, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7862615B2 | Intervertebral implant with two shapes | Human Necessities | 105 | Active |
| US4257590A | Portable home gymnasium | Human Necessities | 97 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.