Otto Zapf
1Patents
0Active
1Granted
24Portfolio score
Filing activity: Mar 13, 1980 → Mar 13, 1980
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4362336A | Sliding chair | Human Necessities | 64 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.