Joseph Chang

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North Wales, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Temperature controller module
- Patent number 6,857,276
- Issue date Feb 22, 2005
- Photon-X, LLC
- John Finn
- G05 - CONTROLLING REGULATING
Information Patent Grant
Optical amplifier
- Patent number D476977
- Issue date Jul 8, 2003
- Photon-X, Inc.
- Renfeng Gao
- D14 - Recording, communication, or information retrieval equipment

Patents Applicationslast 30 patents

Information Patent Application
Optical polymer nanocomposite substrates with surface relief struct...
- Publication number 20030180029
- Publication date Sep 25, 2003
- Anthony F. Garito
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Temperature controller module
- Publication number 20030154726
- Publication date Aug 21, 2003
- John Finn
- G05 - CONTROLLING REGULATING