Douglas Richardson
5Patents
4h-index
2Co-inventors
47Inventor score
Filing activity: Jun 8, 1976 → Apr 17, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6377739B1 | Two dimensional fiber optic output array | Physics | 14 | Expired |
| US6842553B2 | Method for cross-connecting optical signals at high speed | Electricity | 8 | Expired |
| US4448120A | Calligraphic apparatus and method and engraving tool for use in connection therewith | Performing Operations; Transporting | 6 | Expired |
| US4369701A | Calligraphic apparatus and method | Performing Operations; Transporting | 4 | Expired |
| USD249781S | Charm or the like | General | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.