Qinghong DU

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Fremont, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Reflective diffraction grating and fabrication method
- Patent number 10,768,349
- Issue date Sep 8, 2020
- Lumentum Operations LLC
- John Michael Miller
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Reflective diffraction grating and fabrication method
- Patent number 9,720,147
- Issue date Aug 1, 2017
- Lumentum Operations LLC
- John Michael Miller
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
REFLECTIVE DIFFRACTION GRATING AND FABRICATION METHOD
- Publication number 20170299789
- Publication date Oct 19, 2017
- Lumentum Operations LLC
- John Michael MILLER
- G02 - OPTICS
Information Patent Application
REFLECTIVE DIFFRACTION GRATING AND FABRICATION METHOD
- Publication number 20150276998
- Publication date Oct 1, 2015
- John Michael MILLER
- G02 - OPTICS