Robert H. Youngren
18Patents
10h-index
10Co-inventors
69Inventor score
Filing activity: Feb 20, 1998 → Apr 26, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6629684B2 | Combination nail pulling tool | Performing Operations; Transporting | 28 | Expired |
| USD549064S1 | Hammer | General | 24 | Expired |
| USD730134S1 | Pick | General | 18 | Active |
| USD752938S1 | Hammer | General | 16 | Active |
| USD549066S1 | Hammer | General | 14 | Expired |
| USD672218S1 | Hammer | General | 14 | Active |
| US6647829B1 | Striking tool with weight forward head | Performing Operations; Transporting | 12 | Expired |
| USD521342S1 | Hammer | General | 11 | Expired |
| USD601398S1 | Hammer | General | 11 | Expired |
| USD604136S1 | Hammer | General | 10 | Expired |
| USD551529S1 | Hammer | General | 10 | Expired |
| US7404346B2 | Striking tool with weight forward head | Performing Operations; Transporting | 8 | Expired |
| US6196088A | Hammer with striking cap | Performing Operations; Transporting | 7 | Expired |
| USD540646S1 | Hammer | General | 6 | Expired |
| US6976406B2 | Striking tool with weight forward head | Performing Operations; Transporting | 6 | Expired |
| USD788562S1 | Hammer | General | 1 | Active |
| USD773599S1 | Machete | General | 0 | Active |
| USD833246S1 | Hammer | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.