Walter Schmidt
34Patents
11h-index
28Co-inventors
75Inventor score
Filing activity: Jun 13, 1977 → Aug 27, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4808200A | Electrostatic precipitator power supply | Emerging Cross-Sectional Technologies | 69 | Expired |
| US4779182A | Power supply for an electrostatic filter | Emerging Cross-Sectional Technologies | 67 | Expired |
| US4566287A | Post mix dispensing machine | Performing Operations; Transporting | 65 | Expired |
| US4413225A | Method of operating an electrostatic precipitator | Emerging Cross-Sectional Technologies | 60 | Expired |
| US4649510A | Methods and apparatus for the protection and control of computer programs | Physics | 50 | Expired |
| US5291366A | Surge voltage arrester | Electricity | 28 | Expired |
| US5602710A | Surge arrester | Electricity | 21 | Expired |
| US5936826A | Surge arrester | Electricity | 20 | Expired |
| US5517382A | Surge suppressor having looped clamping elements | Electricity | 17 | Expired |
| US4432061A | System for controlling the voltage of an electrofilter | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4233039A | Power supply for an electric precipitator | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4354860A | Method for determining the filter current limit of an electrostatic filter | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4433281A | Method for detecting breakdowns in an electrostatic filter | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4670829A | Method and apparatus for supplying an electrostatic precipitator with high voltage pulses | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4354152A | Method for automatic control of the voltage of an electrostatic filter at the breakdown limit | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4432062A | Method for optimizing the knock frequency of an electrofilter system | Performing Operations; Transporting | 8 | Expired |
| US4873620A | Voltage supply with recovery protection for a thyristor | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4402466A | Bowl cutter and mixer for foodstuffs | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6594133B1 | Surge arrester | Electricity | 8 | Expired |
| US5650772A | Device for indicating a faulty condition of an electrical apparatus, in particular of a surge arrester | Electricity | 7 | Expired |
| US5942968A | Overvoltage suppressor | Electricity | 4 | Expired |
| US4382805A | System for automatically controlling the breakdown voltage limit of an electrofilter | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8989907B2 | Process and apparatus for adequately irrigating soil | Human Necessities | 4 | Active |
| US5684664A | Method for the production of an insulator | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6028759A | Electrical apparatus, in particular a surge arrestor, having an apparatus for indicating a fault current | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.