Charles X.W. Qian

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Cupertino, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Re-alignable packaging for multi-port fiber optical devices
- Patent number 6,692,160
- Issue date Feb 17, 2004
- Nexfon Corporation
- Yi Qin
- G02 - OPTICS
Information Patent Grant
Optical interleaver and de-interleaver
- Patent number 6,574,049
- Issue date Jun 3, 2003
- Nexfon Corporation
- Charles Qian
- G02 - OPTICS
Information Patent Grant
Phase and free spectra range adjustable optical reflectors for dens...
- Patent number 6,386,718
- Issue date May 14, 2002
- Charles X. W. Qian
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Low loss optical cascade devices
- Publication number 20030206346
- Publication date Nov 6, 2003
- Jianying Cao
- G02 - OPTICS
Information Patent Application
Re-alignable packaging for multi-port fiber optical devices
- Publication number 20030063864
- Publication date Apr 3, 2003
- Yi Qin
- G02 - OPTICS
Information Patent Application
Spectrum division multiplexing for high channel count optical networks
- Publication number 20030035168
- Publication date Feb 20, 2003
- Charles X.W. Qian
- G02 - OPTICS
Information Patent Application
Optical fiber collimator with long working distance and low inserti...
- Publication number 20020197020
- Publication date Dec 26, 2002
- Charles Qian
- G02 - OPTICS
Information Patent Application
Spectrum division multiplexing for high channel count optical networks
- Publication number 20020126291
- Publication date Sep 12, 2002
- Charles X. W. Qian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Multi-port optical filtering glass package and method of manufactur...
- Publication number 20020118920
- Publication date Aug 29, 2002
- Kurt R. Francis
- G02 - OPTICS
Information Patent Application
Multi-channel wavelength slicing using an etalon-based interleaver...
- Publication number 20020003643
- Publication date Jan 10, 2002
- Charles X.W. Qian
- G02 - OPTICS