https://pss-system.cponline.cnipa.gov.cn/conventionalSearch
http://pss-system.cnipa.gov.cn/sipopublicsearch/portal/uilogin-forwardLogin.shtml?version=tem
https://www.cnipa.gov.cn/col/col1518/index.html
http://wcjs.sbj.cnipa.gov.cn/txnT01.do
https://register.ccopyright.com.cn/query.html
https://www.cnipa.gov.cn/col/col164/index.html
https://patentscope2.wipo.int/search/en/search.jsf
https://patft.uspto.gov/
https://www.epo.org/searching-for-patents.html
https://www.gov.uk/search-for-patent
https://www.dpma.de/patente/recherche/index.html
https://www.ige.ch/en/intellectual-property/all-ip-rights-at-a-glance
https://esearch.ipd.gov.hk/nis-pos-view/#/
https://www.j-platpat.inpit.go.jp/
https://www.dsedt.gov.mo/zh/web/public/pg_ip_reg_qe?_refresh=true
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