Lianhua Ji

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Boulder, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Optical attenuator
- Patent number 6,636,681
- Issue date Oct 21, 2003
- Photonport Technologies, Inc.
- Lianhua Ji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
DC-balanced and non-DC-balanced drive schemes for liquid crystal de...
- Patent number 6,507,330
- Issue date Jan 14, 2003
- Displaytech, Inc.
- Mark A. Handschy
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Optical attenuator
- Publication number 20020164146
- Publication date Nov 7, 2002
- Photonport Technologies, Inc.
- Lianhua Ji
- B82 - NANO-TECHNOLOGY