Ralph Lagergren
3Patents
3h-index
1Co-inventors
33Inventor score
Filing activity: Mar 18, 1997 → Sep 18, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5971642A | Writing instrument with finger retainer | Performing Operations; Transporting | 18 | Expired |
| US5944433A | Pivotal finger retainer for writing instrument | Performing Operations; Transporting | 13 | Expired |
| USD389185S | Writing instrument with finger retainer | General | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.