Peter Ehrmann
5Patents
5h-index
6Co-inventors
48Inventor score
Filing activity: Jul 19, 1982 → Sep 6, 1989
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5139275A | Shaft seal | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US4886281A | Sealing ring having a sealing surfacer with a recessional annular projection | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4553763A | Seal ring having an axis parallel intermediate ring | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4427205A | Radial shaft sealing ring | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4447064A | Radial shaft sealing ring having a sealing lip and liquid deflectors | Mechanical Engineering; Lighting; Heating | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.