Donald Walker
7Patents
5h-index
6Co-inventors
56Inventor score
Filing activity: Apr 24, 1978 → Dec 15, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4202600A | Diced retroreflective sheeting | Physics | 186 | Expired |
| US4220446A | Attachable tooth cleaning agent dispenser for dental handpieces | Human Necessities | 17 | Expired |
| US7469032B2 | Structural and patient positioning features of an x-ray system | Human Necessities | 12 | Expired |
| US8251583B2 | Removable radiation sensor for dental imaging systems | Human Necessities | 6 | Active |
| US8509381B2 | Patient positioning system for panoramic dental radiation imaging system | Human Necessities | 5 | Active |
| US8515007B2 | Motion system for panoramic dental radiation imaging system | Human Necessities | 1 | Active |
| US7077567B1 | X-ray tubehead housing with slant-angle partition | Human Necessities | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.