Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829096 | Bi-directional wavelength division multiplexing/demultiplexing devices | — | 2004-12-07 |
| 6591040 | Ultra-dense wavelength division multiplexing/demultiplexing devices | Joseph R. Dempewolf, Ian Turner | 2003-07-08 |
| 6580856 | Wavelength division multiplexing/demultiplexing devices using homogeneous refractive index lenses | — | 2003-06-17 |
| 6480648 | Technique for detecting the status of WDM optical signals | Ian Turner, Alan E. Willner, Joseph R. Dempewolf, William W. Peck | 2002-11-12 |
| 6449097 | Diffraction grating for wavelength division multiplexing/demultiplexing devices | Ninghui Zhu, Ian Turner, Yuri A. Yudin, Mikhail N. Sokolskiy | 2002-09-10 |
| 6449068 | Optical power managed network node for processing dense wavelength division multiplexed optical signals | Ian Turner, William L. Emkey | 2002-09-10 |
| 6434299 | Wavelength division multiplexing/demultiplexing devices having concave diffraction gratings | Yuri A. Yudin, Mikhail N. Sokolskiy | 2002-08-13 |
| 6404945 | Wavelength division multiplexing/demultiplexing devices using homogeneous refractive index lenses | — | 2002-06-11 |
| 6343169 | Ultra-dense wavelength division multiplexing/demultiplexing device | Joseph R. Dempewolf, Ian Turner | 2002-01-29 |
| 6298182 | Wavelength division multiplexing/demultiplexing devices using polymer lenses | — | 2001-10-02 |
| 6289155 | Wavelength division multiplexing/demultiplexing devices using dual high index of refraction crystalline lenses | — | 2001-09-11 |
| 6271970 | Wavelength division multiplexing/demultiplexing devices using dual homogeneous refractive index lenses | — | 2001-08-07 |
| 6263135 | Wavelength division multiplexing/demultiplexing devices using high index of refraction crystalline lenses | — | 2001-07-17 |
| 6243513 | Wavelength division multiplexing/demultiplexing devices using diffractive optic lenses | — | 2001-06-05 |
| 6236780 | Wavelength division multiplexing/demultiplexing devices using dual diffractive optic lenses | — | 2001-05-22 |
| 6181853 | Wavelength division multiplexing/demultiplexing device using dual polymer lenses | — | 2001-01-30 |
| 6137933 | Integrated bi-directional dual axial gradient refractive index/diffraction grating wavelength division multiplexer | Boyd V. Hunter, Joseph R. Dempewolf, Ray T. Chen | 2000-10-24 |
| 6011884 | Integrated bi-directional axial gradient refractive index/diffraction grating wavelength division multiplexer | Robert H. Dueck, Boyd V. Hunter, Joseph R. Dempewolf | 2000-01-04 |
| 6011885 | Integrated bi-directional gradient refractive index wavelength division multiplexer | Joseph R. Dempewolf, Robert H. Dueck, Boyd V. Hunter, Alan E. Willner | 2000-01-04 |
| 5999672 | Integrated bi-directional dual axial gradient refractive index/diffraction grating wavelength division multiplexer | Boyd V. Hunter, Joseph R. Dempewolf, Ray T. Chen | 1999-12-07 |
| 5815318 | Axially-graded index-based couplers | Joseph R. Dempewolf | 1998-09-29 |
| 5796525 | Quadaxial gradient index lens | Joseph R. Dempewolf | 1998-08-18 |