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Beijing, CN
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last 30 patents
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Patent Grant
Rigid endoscope
Patent number
10,653,302
Issue date
May 19, 2020
BEIJING WESTON ASIA-PACIFIC OPTO-ELECTRIC INSTRUMENT CO., LTD.
Xiaohua Liu
G02 - OPTICS
Patents Applications
last 30 patents
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Patent Application
ENDOSCOPE SYSTEM
Publication number
20240023788
Publication date
Jan 25, 2024
BEIJING WESTON ASIA-PACIFIC OPTO-ELECTRIC INSTRUMENT CO., LTD.
Xiaohua LIU
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
LIGHTING SOURCE AND ENDOSCOPE
Publication number
20230218153
Publication date
Jul 13, 2023
BEIJING WESTON ASIA-PACIFIC OPTO-ELECTRIC INSTRUMENT CO., LTD.
Xiaohua LIU
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
RIGID ENDOSCOPE
Publication number
20180206702
Publication date
Jul 26, 2018
BEIJING WESTON ASIA-PACIFIC OPTO-ELECTRIC INSTRUMENT CO., LTD.
Xiaohua LIU
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE