David S. Duncan
7Patents
6h-index
3Co-inventors
48Inventor score
Filing activity: Jan 11, 1983 → Nov 26, 1990
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD342652S | Garden pruner | General | 53 | Expired |
| USD336222S | Garden pruner | General | 45 | Expired |
| US4852254A | Razor blade assembly and its method of manufacture | Performing Operations; Transporting | 16 | Expired |
| US4860449A | Razor blade assembly | Performing Operations; Transporting | 15 | Expired |
| US4654968A | Knife sharpeners | Performing Operations; Transporting | 14 | Expired |
| US4501067A | Razors and shaving units for razors | Performing Operations; Transporting | 12 | Expired |
| US4690018A | Razor blade assembly and its method of manufacture | Emerging Cross-Sectional Technologies | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.