Erwin Grassl
9Patents
5h-index
7Co-inventors
56Inventor score
Filing activity: Jan 18, 1980 → May 31, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7019241B2 | Energy-autonomous electromechanical wireless switch | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4717817A | Chip card reader | Physics | 34 | Expired |
| US4318587A | Electrically actuated switch for light waveguides | Physics | 20 | Expired |
| US4634810A | Station for the accommodation of a chargeable cordless telephone | Electricity | 17 | Expired |
| US8067690B2 | Module receptacle | Electricity | 9 | Active |
| US4731836A | Telephone set for table-top and wall operation | Electricity | 5 | Expired |
| US4794242A | Chip card reader | Physics | 2 | Expired |
| US4839921A | Telephone station comprising an optical display device | Electricity | 2 | Expired |
| US4810066A | Cover for telecommunications equipment | Electricity | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.