1、直接下载：

你可以从平台你的侵权申诉页面-知识产权附件-下载附件-直接下载投诉方商标证书；

2、公开在线查询

中国：国家知识产权局网站/国家商标局（https://sbj.cnipa.gov.cn/sbj/index.html），输入知识产权编号查看商标信息

美国：美国专利商标主管机关网站查询：https://www.uspto.gov/trademarks/search

欧盟：欧盟商标主管机关网站查询：https://euipo.europa.eu/ohimportal/trade-marks

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How to search the complainant's registered trademark

1、 Download directly: Access the Appeal page sent by the Platform, go to Intellectual property Attachment - Download Attachment, and download the complainant's trademark registration certificate；

2、Search online:

China: Search the website of the Trademark Office of China National Intellectual Property Administration by inserting the registration number: https://sbj.cnipa.gov.cn/sbj/index.html

United States: Search the website of the United States Patent and Trademark Office: https://www.uspto.gov/trademarks/search

EU: Search the website of the European Union Intellectual Property: https://euipo.europa.eu/ohimportal/trade-marks