Shi Jian

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Zhenjiang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Polishing instrument for optical components
- Patent number 8,696,412
- Issue date Apr 15, 2014
- Zenni Optical, Inc.
- Shi Jian
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
Polishing Instrument for Optical Components
- Publication number 20130171916
- Publication date Jul 4, 2013
- Shi Jian
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC