Mark Farries
17Patents
11h-index
21Co-inventors
68Inventor score
Filing activity: Oct 11, 1990 → May 8, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5706375A | Variable-attenuation tunable optical router | Electricity | 96 | Expired |
| US6393180B1 | Providing a refractive index change in an ion diffused material | Physics | 54 | Expired |
| US5163058A | Semiconductor laser pump source | Electricity | 37 | Expired |
| US5699468A | Bragg grating variable optical attenuator | Physics | 34 | Expired |
| US6607313B1 | Micro-optic delay element for use in a polarization multiplexed system | Electricity | 28 | Expired |
| US5909295A | Hybrid bi-directional wavelength division multiplexing device | Physics | 22 | Expired |
| US5778119A | In-line grating device for forward coupling light | Physics | 19 | Expired |
| US5754718A | Hybrid optical filtering circuit | Physics | 18 | Expired |
| US6040932A | Method and circuit for demultiplexing an optical signal | Physics | 17 | Expired |
| US6201907A | Optical drop circuit having group delay compensation | Physics | 17 | Expired |
| US6819872B2 | Micro-optic delay element for use in a time division multiplexed system | Electricity | 16 | Expired |
| US6154585A | 11/2.times.2 optical switch | Electricity | 11 | Expired |
| US6415067B1 | N x M optical switch | Electricity | 10 | Expired |
| US6016375A | Wavelength selective fiber to fiber optical tap | Physics | 7 | Expired |
| US5084881A | Glass laser | Electricity | 6 | Expired |
| US6546162B1 | 1½×2 optical switch with a transmissive switching element | Electricity | 2 | Expired |
| US7167650B2 | Method and apparatus for demultiplexing high bit rate optical signals on dense wavelength grid | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.