Fenglei LIU

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Zhejiang, CN

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Patents Applicationslast 30 patents

Information Patent Application
OPTICAL MODULE AND OPTICAL SYSTEM THEREOF FOR HEAD-UP DISPLAY, AND...
- Publication number 20230384585
- Publication date Nov 30, 2023
- Zhejiang Crystal-Optech Co., Ltd.
- Honghu Ma
- G02 - OPTICS
Information Patent Application
OPTICAL ELEMENT AND OPTICAL MODULE
- Publication number 20230244014
- Publication date Aug 3, 2023
- Zhejiang Crystal-Optech Co., Ltd.
- Zhaokun Wang
- G02 - OPTICS
Information Patent Application
PREPARATION METHOD OF HYDROGENATED COMPOSITE FILM AND OPTICAL FILTER
- Publication number 20230178347
- Publication date Jun 8, 2023
- ZHEJIANG CRYSTAL-OPTECH CO., LTD.
- Yanzhi WANG
- C03 - GLASS MINERAL OR SLAG WOOL