Donald W. Wortman
8Patents
5h-index
1Co-inventors
49Inventor score
Filing activity: Feb 26, 1979 → Nov 18, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4663580A | Sealed lead-acid battery float charger and power supply | Emerging Cross-Sectional Technologies | 162 | Expired |
| US4415943A | Equipment protector and energy saving apparatus | Electricity | 29 | Expired |
| US5138658A | Subscriber line interface circuit providing regulated current | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4392225A | Telephone carrier system repeater and power supply | Electricity | 15 | Expired |
| US4278847A | Transformerless hybrid circuits | Electricity | 10 | Expired |
| US4433215A | Solid state hybrid circuits | Electricity | 5 | Expired |
| US4459433A | Station identification circuit arrangement | Electricity | 4 | Expired |
| US4600875A | Power supplies with latch-up prevention and automatic back-up | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.