Frank C. Demarest
17Patents
9h-index
4Co-inventors
65Inventor score
Filing activity: Jun 3, 1980 → Nov 8, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6219144A | Apparatus and method for measuring the refractive index and optical path length effects of air using multiple-pass interferometry | Physics | 43 | Expired |
| US6327039A | Interferometer and method for measuring the refractive index and optical path length effects of air | Physics | 39 | Expired |
| US6529279B2 | Interferometer and method for measuring the refractive index and optical path length effects of air | Physics | 26 | Expired |
| US6525825B2 | Interferometer and method for measuring the refractive index and optical path length effects of air | Physics | 26 | Expired |
| US4427296A | Electro-optical measuring system | Physics | 18 | Expired |
| US6407816B1 | Interferometer and method for measuring the refractive index and optical path length effects of air | Physics | 18 | Expired |
| US5767972A | Method and apparatus for providing data age compensation in an interferometer | Physics | 13 | Expired |
| US6525826B2 | Interferometer and method for measuring the refractive index and optical path length effects of air | Physics | 12 | Expired |
| US6597459B2 | Data age adjustments | Physics | 10 | Expired |
| US6975406B2 | Glitch filter for distance measuring interferometry | Physics | 7 | Expired |
| US4332475A | Edge timing in an optical measuring apparatus | Physics | 6 | Expired |
| US7428685B2 | Cyclic error compensation in interferometry systems | Physics | 5 | Expired |
| US7616322B2 | Cyclic error compensation in interferometry systems | Physics | 3 | Active |
| US7542147B2 | Data age compensation with avalanche photodiode | Physics | 2 | Active |
| US9146093B2 | Non-harmonic cyclic error compensation in interferometric encoder systems | Electricity | 1 | Active |
| US7576868B2 | Cyclic error compensation in interferometry systems | Physics | 0 | Active |
| US8913226B2 | Cyclic error compensation in interferometric encoder systems | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.