Peter Paul Speiser
2Patents
0Active
2Granted
22Portfolio score
Filing activity: Aug 7, 1978 → May 2, 1980
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4269821A | Biological materials | Emerging Cross-Sectional Technologies | 43 | Expired |
| US4225581A | Biological materials | Emerging Cross-Sectional Technologies | 42 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.