John Redfern
11Patents
5h-index
13Co-inventors
63Inventor score
Filing activity: Nov 17, 1977 → Nov 3, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4469399A | Method of making an undersea, high pressure bulkhead penetrator for use with fiber optic cables | Physics | 38 | Expired |
| US4144530A | Combined intrusion sensor line | Physics | 21 | Expired |
| US4194194A | Piezoelectric vibration detector for sensing a nearby intruder | Physics | 17 | Expired |
| US11156386B2 | Method for thermal profile control and energy recovery in geothermal wells | Emerging Cross-Sectional Technologies | 13 | Active |
| US11125472B2 | Fluid for use in power production environments | Emerging Cross-Sectional Technologies | 11 | Active |
| US4330855A | Apparatus for multiplexing digital signals | Physics | 4 | Expired |
| US11808488B2 | Energy recovery in geothermal wells | Emerging Cross-Sectional Technologies | 2 | Active |
| US11460008B2 | Method for on demand power production utilizing geologic thermal recovery | Emerging Cross-Sectional Technologies | 2 | Active |
| US12241660B2 | Operational protocol for harvesting a thermally productive formation | Emerging Cross-Sectional Technologies | 2 | Active |
| US12228112B2 | Method for on demand power production utilizing geologic thermal recovery | Emerging Cross-Sectional Technologies | 0 | Active |
| US12163696B2 | Method for thermal profile control and energy recovery in geothermal wells | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.