Friedhelm Pfitzer
7Patents
2h-index
10Co-inventors
44Inventor score
Filing activity: Dec 18, 2003 → Jul 11, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7862717B2 | Oil filter arrangement | Performing Operations; Transporting | 4 | Active |
| US7842183B2 | Oil filter assembly | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US8182681B2 | Oil filter assembly | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8128818B2 | Oil filter | Performing Operations; Transporting | 1 | Active |
| US8282821B2 | Oil filter assembly and associated filter element | Performing Operations; Transporting | 1 | Active |
| US10087930B2 | Vane for a vane cell pump and vane cell pump | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US7198061B2 | Valve | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.