Roland Ryf
65Patents
12h-index
36Co-inventors
84Inventor score
Filing activity: Apr 3, 2001 → Mar 31, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6704475B2 | Mirror for use with a micro-electro-mechanical system (MEMS) optical device and a method of manufacture therefor | Physics | 26 | Expired |
| US6618184B2 | Device for use with a micro-electro-mechanical system (MEMS) optical device and a method of manufacture therefor | Physics | 24 | Expired |
| US6757458B2 | Optical MEMS switch with converging beams | Physics | 22 | Expired |
| US6704476B2 | Optical MEMS switch with imaging system | Physics | 20 | Expired |
| US7016098B2 | Optical device with configurable channel allocation | Electricity | 18 | Expired |
| US6882770B2 | Imaging technique for use with optical MEMS devices | Physics | 16 | Expired |
| US7502160B2 | Speckle reduction in laser-projector images | Physics | 16 | Active |
| US9077455B2 | Optical receiver having a MIMO equalizer | Electricity | 15 | Active |
| US8355638B2 | Receiver for optical transverse-mode-multiplexed signals | Electricity | 15 | Active |
| US7149407B1 | Orthogonal heterodyne optical signal-to-noise-ratio (OSNR) monitoring method and apparatus | Electricity | 15 | Expired |
| US8129669B2 | System and method generating multi-color light for image display having a controller for temporally interleaving the first and second time intervals of directed first and second light beams | Electricity | 14 | Active |
| US8109638B2 | Diffuser configuration for an image projector | Physics | 14 | Active |
| US7440158B2 | Direct optical image projectors | Physics | 12 | Active |
| US8247999B2 | Time division multiplexing a DC-to-DC voltage converter | Electricity | 11 | Active |
| US8320769B2 | Transverse-mode multiplexing for optical communication systems | Electricity | 11 | Active |
| US8223188B2 | Monitor having integral camera and method of operating the same | Physics | 10 | Active |
| US7580175B2 | Detector of infrared radiation having a bi-material transducer | Physics | 9 | Active |
| US6647172B2 | Imaging technique for use with optical MEMS devices | Physics | 9 | Expired |
| US8822905B2 | Optical mode couplers for multi-mode optical fibers | Physics | 8 | Active |
| US8538275B2 | Multimode optical communication | Physics | 8 | Active |
| US8582933B2 | Scalable waveguide-mode coupler for an optical receiver or transmitter | Physics | 7 | Active |
| US10345192B2 | Single-end optical fiber transfer matrix measurement using spatial pilot | Electricity | 6 | Active |
| US9411100B2 | Photonic lantern spatial multiplexers with mode selectivity | Physics | 6 | Active |
| US8391655B2 | Waveguide coupler for optical transverse-mode multiplexing | Physics | 5 | Active |
| US7851759B2 | Infrared imaging apparatus | Physics | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.