Wilfried Lehmann
5Patents
4h-index
5Co-inventors
46Inventor score
Filing activity: Oct 18, 1977 → Mar 16, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4149574A | Apparatus for filling a hollow and closed system provided with only one filling aperture | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4390317A | Self-priming centrifugal pump, in particular for conveying liquids in the vicinity of their boiling point | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4230438A | Rotary pump assembly | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4979875A | Centrifugal pump for the delivery of hot liquids | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5549450A | Centrifugal pump of the sectional-casing design | Mechanical Engineering; Lighting; Heating | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.