Christopher D. Smith
14Patents
7h-index
34Co-inventors
66Inventor score
Filing activity: May 25, 1977 → Sep 30, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4130174A | Loudspeaker | Electricity | 42 | Expired |
| US6024429A | Mailing machine including ink jet printing having ink availability checking | Physics | 27 | Expired |
| US5579752A | Adjustable bow sight | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4644206A | Continuously variable torque converter | Electricity | 15 | Expired |
| US5388136A | X-ray inspection apparatus for electronic circuits | Physics | 12 | Expired |
| US4899172A | Method and apparatus for perforating indicia on used thermal transfer ribbon within a cassette | Physics | 9 | Expired |
| USD736139S1 | Boat hull having twin sponsons | General | 8 | Active |
| US5585613A | Postage metering apparatus including means for guarding against printing a postage value without accouting therefor | Physics | 6 | Expired |
| US4926193A | Thermal transfer ribbon cartridge including ribbon perforating means | Performing Operations; Transporting | 4 | Expired |
| US7903266B2 | System and method for using divided fonts to achieve proportional spacing | Physics | 2 | Active |
| US9149166B2 | Low energy centrifugal liquid-solid separator system | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US11896065B2 | Personal temperature regulation device | Human Necessities | 0 | Active |
| US11970192B2 | Railroad energy delivery system | Emerging Cross-Sectional Technologies | 0 | Active |
| US9963629B2 | Foamers for unloading high-condensate gas wells | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.