Wilhelm Koch
14Patents
7h-index
29Co-inventors
66Inventor score
Filing activity: Aug 7, 1975 → Apr 6, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5937892A | Sanitary water valve | Emerging Cross-Sectional Technologies | 44 | Expired |
| US6641727B1 | Filter faucet | Fixed Constructions | 20 | Expired |
| US4784368A | Self-closing valve for sanitary installations | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4312499A | Shock absorber assembly with operationally controlled hydraulic-mechanical damping system | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US4468887A | Window lifting mechanism, particularly for motor vehicles | Fixed Constructions | 14 | Expired |
| US5303737A | Sanitary fitting | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4645350A | Densitometer | Physics | 9 | Expired |
| US4968140A | Manual device for the determination or measurement of photometric data using a measuring head | Physics | 7 | Expired |
| US4135453A | Motorized bogie | Performing Operations; Transporting | 6 | Expired |
| US4839920A | Method for determining telephone dial pulse parameters independently of subscriber line length | Electricity | 6 | Expired |
| US4406089A | Cable window driving mechanism for motor vehicles | Fixed Constructions | 3 | Expired |
| US4095530A | Resilient railway drive connection | Performing Operations; Transporting | 3 | Expired |
| US5353096A | Guide apparatus for copy masters | Physics | 2 | Expired |
| US4086787A | Device for transmitting force from one shaft to another | Mechanical Engineering; Lighting; Heating | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.