Ferdinand Hermann
8Patents
3h-index
14Co-inventors
54Inventor score
Filing activity: Jun 22, 1981 → Mar 9, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4493137A | Method of making a drive element assembly for ink jet printing | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4365902A | Wire matrix print head | Performing Operations; Transporting | 6 | Expired |
| US4810892A | Unit and method utilizing a data medium for determining the relative position between two parts | Physics | 3 | Expired |
| US10215811B2 | Electronic circuit for measuring currents during charging and discharging of a secondary battery | Electricity | 1 | Active |
| US10554068B2 | Electrical circuit and method for charging a secondary battery | Electricity | 0 | Active |
| US11637438B2 | Battery powered electrical appliance for personal hygiene | Human Necessities | 0 | Active |
| US11083279B2 | Cosmetic device with exchangeable application head | Human Necessities | 0 | Active |
| US12334858B2 | Small electrical appliance with improved motor speed control | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.