Siegfried Schertler
3Patents
0Active
3Granted
26Portfolio score
Filing activity: May 15, 1985 → Mar 3, 1986
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4560141A | Vacuum gate valve | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US4634094A | Shutoff valve | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4627599A | Sealing mechanism for high vacuum valve | Mechanical Engineering; Lighting; Heating | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.