- 专利检索及分析
http://www.pss-system.gov.cn/sipopublicsearch/portal/uiIndex.shtml
- Soopat专利搜索引擎
- 谷歌学术
- Derwent Innovations Index 数据库Web of Science
http://apps.webofknowledge.com
- WIPO世界知识产权组织
https://www.wipo.int/portal/en/index.html
http://www.pss-system.gov.cn/sipopublicsearch/portal/uiIndex.shtml
http://apps.webofknowledge.com
https://www.wipo.int/portal/en/index.html