LightChip, Inc.
21Patents
0Active
21Granted
31Portfolio score
Filing activity: Dec 13, 1997 → Jun 1, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5999672A | Integrated bi-directional dual axial gradient refractive index/diffraction grating wavelength division multiplexer | Physics | 86 | Expired |
| US6011884A | Integrated bi-directional axial gradient refractive index/diffraction grating wavelength division multiplexer | Physics | 72 | Expired |
| US6449097B1 | Diffraction grating for wavelength division multiplexing/demultiplexing devices | Emerging Cross-Sectional Technologies | 61 | Expired |
| US6011885A | Integrated bi-directional gradient refractive index wavelength division multiplexer | Physics | 59 | Expired |
| US6137933A | Integrated bi-directional dual axial gradient refractive index/diffraction grating wavelength division multiplexer | Physics | 57 | Expired |
| US6263135A | Wavelength division multiplexing/demultiplexing devices using high index of refraction crystalline lenses | Physics | 34 | Expired |
| US6289155A | Wavelength division multiplexing/demultiplexing devices using dual high index of refraction crystalline lenses | Physics | 33 | Expired |
| USD465216S1 | Optical communications device housing portion | General | 23 | Expired |
| US6271970A | Wavelength division multiplexing/demultiplexing devices using dual homogeneous refractive index lenses | Physics | 23 | Expired |
| US6415073B1 | Wavelength division multiplexing/demultiplexing devices employing patterned optical components | Physics | 18 | Expired |
| US6181853A | Wavelength division multiplexing/demultiplexing device using dual polymer lenses | Physics | 17 | Expired |
| USD468732S1 | Optical communications device housing portion | General | 12 | Expired |
| US6243513A | Wavelength division multiplexing/demultiplexing devices using diffractive optic lenses | Physics | 12 | Expired |
| US6449068B1 | Optical power managed network node for processing dense wavelength division multiplexed optical signals | Electricity | 10 | Expired |
| US6236780A | Wavelength division multiplexing/demultiplexing devices using dual diffractive optic lenses | Physics | 9 | Expired |
| US6343169B1 | Ultra-dense wavelength division multiplexing/demultiplexing device | Electricity | 8 | Expired |
| US6434299B1 | Wavelength division multiplexing/demultiplexing devices having concave diffraction gratings | Physics | 6 | Expired |
| US6298182A | Wavelength division multiplexing/demultiplexing devices using polymer lenses | Physics | 4 | Expired |
| USD470458S1 | Fiber optic jumper | General | 3 | Expired |
| US6480648B1 | Technique for detecting the status of WDM optical signals | Electricity | 1 | Expired |
| US6404945B1 | Wavelength division multiplexing/demultiplexing devices using homogeneous refractive index lenses | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.