Clive E. Catchpole
29Patents
12h-index
31Co-inventors
77Inventor score
Filing activity: Mar 20, 1985 → Sep 24, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5063599A | Electronic image lift | Physics | 120 | Expired |
| US4827085A | Voice and image teleconferencing system including paperless facsimile means | Physics | 82 | Expired |
| US5644330A | Driving method for polymer stabilized and polymer free liquid crystal displays | Physics | 53 | Expired |
| US4731610A | Balanced drive electronic matrix system and method of operating the same | Physics | 41 | Expired |
| US4675739A | Integrated radiation sensing array | Electricity | 41 | Expired |
| US5453849A | Integrating cylinder for object illumination | Physics | 23 | Expired |
| US5313726A | Programmable light modulator for viewing transparent film prints | Physics | 22 | Expired |
| US4827084A | Solid state image detector and signal generator | Physics | 21 | Expired |
| US4728803A | Signal processing apparatus and method for photosensitive imaging system | Electricity | 16 | Expired |
| US7009666B2 | Back lit cholesteric liquid crystal display | Physics | 16 | Expired |
| US5825945A | Document imaging with illumination from lambertian surfaces | Physics | 13 | Expired |
| US5640207A | Camera for high-speed imaging | Electricity | 12 | Expired |
| US5519513A | Techniques for illuminating objects | Physics | 12 | Expired |
| US5606173A | Arrangement for aligning, focusing and normalizing imaging system | Physics | 12 | Expired |
| US5068912A | Track gauges for aligning and focussing the imaging system in a high speed document handling system | Physics | 12 | Expired |
| US5420945A | Methods for aligning focusing and normalizing imaging system | Physics | 11 | Expired |
| US4714836A | Photosensitive pixel with exposed blocking element | Electricity | 9 | Expired |
| US4746804A | Photosensitive pixel with exposed blocking element | Electricity | 8 | Expired |
| US4993802A | Randomizing optical converter for illumination beam and method utilizing same | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5780841A | Document-image camera mounted on reversible clamp | Electricity | 4 | Expired |
| US5420944A | Techniques for aligning, focusing and normalizing imaging system | Physics | 4 | Expired |
| US5272331A | Document imaging camera with lamp bent into symmetrical lamp segments | Electricity | 4 | Expired |
| US5371356A | Document imaging with `doubly-bent` lamps | Electricity | 3 | Expired |
| US5491336A | Document illumination with Lambertian cavity | Electricity | 3 | Expired |
| US6178014A | Methods for illuminating documents | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.