Thomas D. Stephens
28Patents
10h-index
15Co-inventors
64Inventor score
Filing activity: Jul 21, 1998 → May 17, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6115174A | Optical signal varying devices | Electricity | 106 | Expired |
| US6344922B1 | Optical signal varying devices | Electricity | 84 | Expired |
| US6356383B1 | Optical transmission systems including optical amplifiers apparatuses and methods | Electricity | 68 | Expired |
| US6282002A | Optical signal varying devices | Electricity | 37 | Expired |
| US6236487A | Optical communication control system | Electricity | 23 | Expired |
| US6538783B1 | Optical systems including add drop devices and methods | Electricity | 21 | Expired |
| US6563614B1 | Optical transmission system and amplifier control apparatuses and methods | Electricity | 19 | Expired |
| US6782209B2 | Optical transmission systems including optical amplifiers and methods | Electricity | 17 | Expired |
| US6377389B1 | Optical signal varying devices | Electricity | 12 | Expired |
| US6548225B1 | Method and apparatus for writing gratings | Physics | 11 | Expired |
| US6426821B1 | Optical upconverter apparatuses, methods and systems | Electricity | 7 | Expired |
| US6775056B2 | Optical transmission systems including signal varying devices and methods | Electricity | 7 | Expired |
| US6839522B2 | Optical signal varying devices, systems and methods | Electricity | 6 | Expired |
| US6587261B1 | Optical transmission systems including optical amplifiers and methods of use therein | Electricity | 6 | Expired |
| US7133193B2 | Optical transmission systems including optical amplifiers, apparatuses and methods | Electricity | 5 | Expired |
| US6771413B2 | Optical transmission systems including optical amplifiers, apparatuses and methods | Electricity | 4 | Expired |
| US6934077B2 | Optical communication systems including optical amplifiers and amplification methods | Electricity | 2 | Expired |
| US7010229B2 | Optical transmission systems including optical amplifiers and methods | Electricity | 2 | Expired |
| US7522334B2 | Optical communication systems including optical amplifiers and amplification methods with flat noise figure profile | Electricity | 2 | Active |
| US6934473B2 | Optical systems including add drop devices and methods | Electricity | 2 | Expired |
| US7088500B2 | Optical communication systems including optical amplifiers and amplification methods | Electricity | 2 | Expired |
| US7343097B2 | Optical transmission systems including optical amplifiers and methods of use therein | Electricity | 1 | Active |
| US7046430B2 | Optical transmission systems including signal varying devices and methods | Electricity | 1 | Expired |
| US7215463B2 | Optical transmission systems including optical amplifiers and methods of use therein | Electricity | 1 | Expired |
| US7903978B2 | Optical transmission systems and amplifier control apparatuses and methods | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.