Stuart David Farnworth
40Patents
11h-index
15Co-inventors
68Inventor score
Filing activity: Sep 17, 2004 → Feb 28, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD560522S1 | Tape measure | General | 31 | Expired |
| USD590444S1 | Pencil sharpener case with eraser | General | 28 | Expired |
| USD586397S1 | Ribbed eraser | General | 20 | Expired |
| USD721935S1 | Scissors | General | 18 | Active |
| USD580986S1 | Pencil sharpener | General | 18 | Expired |
| USD631313S1 | Scissors | General | 17 | Expired |
| USD591123S1 | Scissors | General | 15 | Expired |
| USD574685S1 | Scissors | General | 14 | Expired |
| USD571632S1 | Scissors | General | 13 | Expired |
| USD591124S1 | Scissors | General | 13 | Expired |
| USD576507S1 | Ruler with tapered groove | General | 12 | Expired |
| USD572103S1 | Scissors | General | 10 | Expired |
| USD658022S1 | Scissors | General | 9 | Expired |
| USD739197S1 | Scissors | General | 9 | Active |
| USD622772S1 | Pencil sharpener | General | 7 | Expired |
| US7934319B2 | Pencil-sharpening device | Emerging Cross-Sectional Technologies | 6 | Active |
| US7886395B2 | Pencil sharpener with eraser | Performing Operations; Transporting | 6 | Active |
| USD755289S1 | Pencil sharpener | General | 6 | Active |
| USD576508S1 | Ruler with rounded ends | General | 6 | Expired |
| USD791563S1 | Scissors | General | 6 | Active |
| USD512927S1 | Ruler | General | 6 | Expired |
| USD587753S1 | Two piece interlocking eraser | General | 5 | Expired |
| US7546858B2 | Pencil sharpener | Performing Operations; Transporting | 4 | Active |
| USD554548S1 | Ruler with inlay strip | General | 4 | Expired |
| USD576506S1 | Finger grip ruler | General | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.