John Keightley
10Patents
6h-index
5Co-inventors
59Inventor score
Filing activity: Oct 25, 1984 → May 23, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5550346A | Laser sheet perforator | Emerging Cross-Sectional Technologies | 73 | Expired |
| US6310644A | Camera theodolite system | Physics | 37 | Expired |
| US7460250B2 | Laser triangulation system | Physics | 34 | Expired |
| US5533268A | Laser deflection apparatus for laser compass | Emerging Cross-Sectional Technologies | 30 | Expired |
| US8035823B2 | Hand-held surface profiler | Physics | 10 | Active |
| US5363217A | Image transfer system | Electricity | 7 | Expired |
| US10267725B2 | Surface profile measurement system | Physics | 3 | Active |
| US4974959A | Slide projector | Physics | 2 | Expired |
| US4556306A | Film processing apparatus including a vacuum pickup head for a film processing fluid container | Physics | 0 | Expired |
| US6947152B2 | High speed laser micrometer | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.