Hao Chen

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Wenzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Spectacle lens and frame glasses
- Patent number 12,111,516
- Issue date Oct 8, 2024
- SHANGHAI ISPARX MEDICAL CO., LTD
- Risheng Xia
- G02 - OPTICS
Information Patent Grant
Method and system for determining personalized near addition value,...
- Patent number 10,473,951
- Issue date Nov 12, 2019
- Essilor International
- XinPing Yu
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
SPECTACLE LENS AND FRAME GLASSES
- Publication number 20240264465
- Publication date Aug 8, 2024
- Risheng XIA
- G02 - OPTICS
Information Patent Application
Method And System For Determining Personalized Near Addition Value,...
- Publication number 20170023798
- Publication date Jan 26, 2017
- ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
- XinPing YU
- G02 - OPTICS
Information Patent Application
CORNEA CENTER POSITIONING METHOD FOR EXCIMER LASER KERATOMILEUSIS
- Publication number 20120303009
- Publication date Nov 29, 2012
- RESEARCH & DEVELOPMENT INSTITUTE OF VISION SCIENCE, WENZHOU MEDICAL COLLEGE
- Danghui Liu
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE