According to the CNIPA announcement 427 released February 11, 2022, the China National Intellectual Property Administration (CNIPA) would no longer accept requests for paper patent certificates of e-filed patent applications from March 1, 2022.
The authenticity of the e-certificate can be verified through China patent electronic application system.
https://www.cnipa.gov.cn/art/2022/2/11/art_74_173171.html
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