Michael Robertson
22Patents
8h-index
40Co-inventors
75Inventor score
Filing activity: Sep 8, 1986 → May 26, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5528710A | Optical switching device with passive input and output stages and active amplifier in a matrix stage | Physics | 37 | Expired |
| US5985685A | Method for making optical device with composite passive and tapered active waveguide regions | Electricity | 31 | Expired |
| US6198863A | Optical filters | Electricity | 26 | Expired |
| US4776655A | Single mode optical waveguides of rectangular cross-section | Physics | 24 | Expired |
| US5844929A | Optical device with composite passive and tapered active waveguide regions | Electricity | 24 | Expired |
| US5699378A | Optical comb filters used with waveguide, laser and manufacturing method of same | Electricity | 18 | Expired |
| US5233209A | Guard ring structure with graded Be implantation | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5978400A | Laser | Electricity | 14 | Expired |
| US5602862A | Optical clock extraction | Electricity | 7 | Expired |
| US4793677A | Electro-optic devices with waveguide and having small spatial spread of applied electric field | Physics | 5 | Expired |
| US7709799B2 | Terahertz detector | Physics | 3 | Active |
| US7851782B2 | Photodetector including multiple waveguides | Emerging Cross-Sectional Technologies | 3 | Active |
| US7627216B2 | Folded cavity of optoelectronic devices | Electricity | 2 | Active |
| US8809092B2 | Generating and detecting radiation | Emerging Cross-Sectional Technologies | 2 | Active |
| US9423565B2 | Coupled waveguide apparatus and structures therefor | Electricity | 2 | Active |
| US5838025A | Electrical barrier structure for semiconductor device doped with chromium and/or titanium | Electricity | 2 | Expired |
| US10673698B2 | Service function chain optimization using live testing | Electricity | 1 | Active |
| US8847357B2 | Opto-electronic device | Electricity | 0 | Active |
| US11115276B2 | Service function chain optimization using live testing | Electricity | 0 | Active |
| US8687269B2 | Opto-electronic device | Electricity | 0 | Active |
| US10684935B2 | Deriving the shortest steps to reproduce a device failure condition | Physics | 0 | Active |
| US10819571B2 | Network traffic optimization using in-situ notification system | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.