Robert A. Murphy
12Patents
7h-index
12Co-inventors
63Inventor score
Filing activity: Mar 2, 1981 → Jun 22, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6469667B2 | Passive anti-jamming antenna system | Electricity | 28 | Expired |
| US4419567A | Heating element for electric water heater | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US5113480A | Fluid heater utilizing dual heating elements interconnected with conductive jumper | Electricity | 18 | Expired |
| US7561105B2 | Emitter locating using time-difference-of-arrival (TDOA) techniques | Physics | 16 | Expired |
| US9060676B2 | Scope warming device with whitening element | Human Necessities | 15 | Active |
| US4779967A | Objective lens assembly | Physics | 12 | Expired |
| US8618400B2 | Alternative electronic musical instrument controller based on a chair platform | Physics | 8 | Active |
| US6992643B2 | Passive anti-jamming antenna system | Electricity | 7 | Expired |
| US4884878A | Zoom optical unit | Physics | 6 | Expired |
| US7324064B2 | Passive anti-jamming antenna system | Electricity | 4 | Expired |
| US8077104B1 | Passive anti-jamming antenna system | Electricity | 1 | Active |
| US9993146B2 | Scope warming device | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.