David Friedson
4Patents
4h-index
2Co-inventors
33Inventor score
Filing activity: Feb 19, 1982 → Aug 14, 1984
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4473086A | Hair curling device having retractable teeth and locking means therefor | Human Necessities | 27 | Expired |
| US4492241A | Retractable curling brush | Human Necessities | 25 | Expired |
| US4477716A | Flocked curling iron | Human Necessities | 25 | Expired |
| US4581519A | Flocked curling iron | Human Necessities | 14 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.