Frederick M. Ryan
14Patents
11h-index
8Co-inventors
61Inventor score
Filing activity: Mar 27, 1973 → Feb 11, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4131064A | Tagging particles which are easily detected by luminescent response, or magnetic pickup, or both | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4622845A | Method and apparatus for the detection and measurement of gases | Physics | 43 | Expired |
| US5076699A | Method and apparatus for remotely and portably measuring a gas of interest | Physics | 38 | Expired |
| US4663961A | System for remote chemical analysis | Physics | 33 | Expired |
| US4001628A | Low-pressure fluorescent discharge device which utilizes both inorganic and organic phosphors | Electricity | 26 | Expired |
| US4018635A | Phosphor combination, particularly adapted for use with explosives, for providing a distinctive information label | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4771629A | System for chemical analysis | Physics | 22 | Expired |
| US4316388A | Temperature detection using the refractive indices of light guides | Physics | 19 | Expired |
| US4652756A | Automated acousto-optic infra-red analyzer system for monitoring stack emissions | Physics | 18 | Expired |
| US3967990A | Combination of band-type and line-type emission phosphors with explosive | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4013490A | Phosphor identification method, particularly adapted for use with explosives, for providing a distinctive information label | Emerging Cross-Sectional Technologies | 13 | Expired |
| USRE29334E | Phosphor combination and method, particularly adapted for use with explosives, for providing a distinctive information label | General | 8 | Expired |
| US5317379A | Chemical species optical analyzer with multiple fiber channels | Physics | 6 | Expired |
| US4705362A | Acousto-optic tunable filter with two acoustic channels | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.