Ralf Strumpler
24Patents
11h-index
20Co-inventors
71Inventor score
Filing activity: Jun 6, 1991 → Mar 27, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5414403A | Current-limiting component | Electricity | 50 | Expired |
| US5313184A | Resistor with PTC behavior | Electricity | 48 | Expired |
| US6738246B1 | Electrical circuit breaker for protecting against overcurrents | Electricity | 44 | Expired |
| US5990778A | Current-limiting resistor having PTC behavior | Electricity | 36 | Expired |
| US5416462A | Electrical resistance element | Electricity | 31 | Expired |
| US5602520A | Electrical resistance element and use of this resistance element in a current limiter | Electricity | 25 | Expired |
| US5248890A | Valance specific lanthanide doped optoelectronic metal fluoride semiconductor device | Electricity | 23 | Expired |
| US5925467A | Electrically and thermally conductive plastic and use of this plastic | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5858533A | Composite material | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6563683B1 | Electrical switchgear | Electricity | 20 | Expired |
| US6469611B1 | Non-linear resistance with varistor behavior and method for the production thereof | Electricity | 16 | Expired |
| US6628485B1 | Apparatus for limiting an electrical current | Electricity | 8 | Expired |
| US6492799B1 | Monitor circuit for a current limiting device | Electricity | 7 | Expired |
| US6515570B2 | Fuse with overstoichiometric amount of oxidant | Electricity | 7 | Expired |
| US5861795A | Current-limiting resistor having PTC behavior | Electricity | 6 | Expired |
| US6157290A | Resistor element | Electricity | 6 | Expired |
| US6613993B1 | Microrelay working parallel to the substrate | Electricity | 5 | Expired |
| US7109560B2 | Micro-electromechanical system and method for production thereof | Electricity | 4 | Expired |
| US6429766B1 | Electrical device comprising a PTC polymer element for overcurrent fault and short-circuit fault protection | Electricity | 4 | Expired |
| US7524166B2 | Compressor cleaning system | Emerging Cross-Sectional Technologies | 3 | Active |
| US6259349A | Electrical component with a constriction in a PTC polymer element | Electricity | 2 | Expired |
| US6396383B1 | Protective element | Electricity | 2 | Expired |
| US6932928B2 | Method of producing a PTC-resistor device | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6743989B2 | Microswitch | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.