Norbert Fortmann
8Patents
4h-index
14Co-inventors
54Inventor score
Filing activity: Mar 20, 1990 → Aug 21, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5178548A | Connector module for providing electrical contacts to magnet valves | Electricity | 10 | Expired |
| US5115889A | Shaft clamping device | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5144883A | Cylinder without a piston rod | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6637316B2 | Pressure fluid cylinder with optional anti-rotation feature | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US10760318B2 | Pneumatic control system | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US5022311A | Compact fluid actuated working cylinder with spring loaded tensioning member | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5246237A | Seal for a work cylinder operated by pressurized fluid | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US5207146A | Working cylinder without piston rod | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.