cnipr.com
中国知识产权网-知识产权一站式服务平台
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clarivate is a global leader in providing trusted insights and analytics. our vision is to improve the way the world creates, protects, and advances innovation.
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查专利，就上佰腾网！佰腾专利检索系统，覆盖全球103个国家、区域与组织，数据量达1.4亿件，支持简单检索、高级检索、法律检索、批量检索，提供专利价值评估及多种类型专利下载方式，同时提供专利报告统计分析等新功能，更好的服务专利检索、专利管理等知识产权工作。
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cnki.net
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incopat.com
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