David A. Bernard
10Patents
8h-index
6Co-inventors
65Inventor score
Filing activity: Sep 9, 1982 → Sep 26, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5400546A | Precision twist drill sharpener/point splitting machine | Performing Operations; Transporting | 26 | Expired |
| US6626745B1 | Precision drill sharpener and grinding wheel assembly therefor | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4485596A | Twist drill point splitting/web thinning apparatus | Performing Operations; Transporting | 16 | Expired |
| US4471581A | Universal twist drill sharpener apparatus | Performing Operations; Transporting | 14 | Expired |
| US5735732A | Precision drill sharpener and grinding wheel assembly therefor | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7172498B2 | Drill sharpener | Performing Operations; Transporting | 10 | Expired |
| US4916866A | End mill sharpener | Performing Operations; Transporting | 10 | Expired |
| USD411735S | Cable manager ring | General | 9 | Expired |
| US4741226A | Power feed | Emerging Cross-Sectional Technologies | 7 | Expired |
| USD385567S | Drill sharpening device | General | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.