Fritz Pohl
23Patents
9h-index
20Co-inventors
75Inventor score
Filing activity: Jun 12, 1981 → Dec 22, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5644283A | Variable high-current resistor, especially for use as protective element in power switching applications & circuit making use of high-current resistor | Electricity | 63 | Expired |
| US6313636A | Method for determining switchgear-specific data at contacts in switchgear and/or operation-specific data in a network connected to the switchgear and apparatus for carrying out the method | Electricity | 25 | Expired |
| US4631120A | Method in which elemental particles electrophoretically migrate through a gel onto a collecting surface of a moving belt | Performing Operations; Transporting | 24 | Expired |
| US7760055B2 | Method and device for the secure operation of a switching device | Electricity | 12 | Expired |
| US4631122A | Electrophoretic apparatus employing a collecting belt moving in contact with a gel | Performing Operations; Transporting | 12 | Expired |
| US6225807A | Method of establishing the residual useful life of contacts in switchgear and associated arrangement | Electricity | 12 | Expired |
| US5844493A | Electromechanical switching device and arrangement with several switching devices | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7692522B2 | Method and device for the safe operation of a switching device | Electricity | 10 | Expired |
| US8159807B2 | Method and device for operating a switching device | Electricity | 10 | Active |
| US6359440B2 | Method of establishing the residual useful life of contacts in switchgear and associated arrangement | Electricity | 9 | Expired |
| US5689397A | Arrangement for disconnecting branches of a low voltage supply network under short circuit conditions | Electricity | 6 | Expired |
| US6104592A | Electromechanical switching device | Electricity | 6 | Expired |
| US6400547B1 | Method of monitoring state parameters in a switching device, and associated device | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5793278A | Limiter for current limiting | Electricity | 4 | Expired |
| US4860146A | Differential current protection circuit breaker | Electricity | 4 | Expired |
| US5410442A | Electromechanical protection devcie | Electricity | 4 | Expired |
| US7812696B2 | Method and device for securely operating a switching device | Electricity | 3 | Active |
| US6307725A | Fault-current protective switchgear | Electricity | 2 | Expired |
| US7978036B2 | Method and device for the secure operation of a switching device | Electricity | 2 | Active |
| US7259944B2 | Method for operating a switch with a connectable current limiter and corresponding arrangement | Electricity | 2 | Expired |
| US6441709B2 | Device for short-circuit protection | Electricity | 1 | Expired |
| US5907270A | Current-limiting switch | Electricity | 1 | Expired |
| US7872552B2 | Method and device for the secure operation of a switching device | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.