Friedhelm Meyer
22Patents
10h-index
26Co-inventors
71Inventor score
Filing activity: Dec 4, 1979 → Feb 9, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5160881A | Alternator for a motor vehicle having a ventilator and device for monitoring and a controlling the ventilator | Electricity | 172 | Expired |
| US5198744A | Apparatus and method for controlling the output power of a generator to maintain generator temperature below an allowed limiting value | Electricity | 30 | Expired |
| US5525891A | Power-supply-apparatus in a vehicle | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4347543A | Rectifier circuit diode array and circuit protector | Electricity | 20 | Expired |
| US5374886A | Voltage regulator for an alternator and method of regulating voltage generated by an alternator | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5548202A | Regulatable alternating device with means for determining final temperature | Electricity | 15 | Expired |
| US5298852A | Arrangement for and method of controlling a three-phase-generator in a vehicle | Electricity | 14 | Expired |
| US5538074A | Heat exchanger, in particular cooling apparatus | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4932217A | Process for controlling a heater, in particular a defrost heater for refrigerating plants | Physics | 13 | Expired |
| US4934593A | Process for setting the temperature difference between cut-in and cut-out temperature of a refrigerating unit or the like in the region of a set value, to be maintained, of the temperature | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5523672A | Voltage-regulator for regulating the voltage of an alternator | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4949548A | Process for controlling the operation of a refrigerating unit | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4755062A | Process and measuring probe for the determination of ice or snow formation | Physics | 9 | Expired |
| US5352929A | Apparatus and method for regulating a generator of an internal combustion engine | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5107198A | Apparatus for charging a battery especially a battery in a motor vehicle, with a self-exciting generator | Electricity | 5 | Expired |
| US5077516A | Generator unit | Electricity | 4 | Expired |
| US4374380A | Automotive electrical network voltage regulation monitoring circuit | Electricity | 4 | Expired |
| US4361867A | Electrical connection system for rectifiers | Electricity | 4 | Expired |
| US4390792A | Automotive electrical power supply system with reverse polarity indication | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4943687A | Current collecting unit | Electricity | 3 | Expired |
| US5691892A | Rectifier arrangement for a three-phase generator | Electricity | 2 | Expired |
| US4363983A | Automotive-type voltage regulator and support assembly structure | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.