Walter Koss
2Patents
0Active
2Granted
29Portfolio score
Filing activity: Oct 26, 1984 → Jun 15, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4643169A | Device for selectively opening and closing tubular organs of the body | Emerging Cross-Sectional Technologies | 71 | Expired |
| US5107828A | Tracheostoma closure device | Human Necessities | 23 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.