Willi Schafer
8Patents
5h-index
13Co-inventors
60Inventor score
Filing activity: Jun 21, 1979 → Sep 11, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4632371A | Gas spring of variable spring force | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4730432A | Molding track for carpeting | Fixed Constructions | 23 | Expired |
| US4749177A | Patient supporting table | Human Necessities | 13 | Expired |
| US4438833A | Piston for a pneumatic, hydraulic, or hydropneumatic installation | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US4281884A | Electrically conductive pneumatic spring | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4309026A | Gas spring | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4788760A | Installation tool for laying carpet (trim) strips | Emerging Cross-Sectional Technologies | 1 | Expired |
| US10527176B2 | Seat valve with electromagnetic actuation | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.