Comparing nanotechnology landscapes in the US and China: a patent analysis perspective
Comparing nanotechnology landscapes in the US and China: a patent analysis perspective
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DOI：
10.1007/s11051-019-4608-0
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发表时间：
2019-08
影响因子：
2.5
通讯作者：
Lanfen Wu;Hongyi Zhu;Hsinchun Chen;M. Roco
中科院分区：
文献类型：
--
作者：
Lanfen Wu;Hongyi Zhu;Hsinchun Chen;M. Roco
美国（US）和中华人民共和国（中国）在其本国的专利保存机构和国际专利保存机构中拥有最多的纳米技术专利。本文比较了2001年至2017年美国专利商标局（USPTO）和中国国家知识产权局（CNIPA）反映的纳米技术景观。介绍了美国和中国纳米技术专利发展的演变，USPTO和CNIPA专利中纳米技术主题的差异，国内外市场纳米技术领域的主要参与者以及参与者合作模式。使用书目，内容和社会网络分析。概述了授权专利和排名国家、专利族、技术领域以及国内外市场主要参与者的纵向变化。合作网络的受让人和有影响力的球员已经确定的基础上网络参数。结果表明，美国市场吸引了更多的国际合作，并有更高的水平，知识交流和资源共享比中国市场。公司在美国纳米技术发展方面发挥着至关重要的作用，导致更多的行业内合作。相比之下，大学和研究机构是中国纳米技术发展的主要贡献者，这导致了中国市场上更多的纳米产业合作。
The United States (US) and the People’s Republic of China (China) have the most patents in nanotechnology in their own depositories and overall in the international depositories. This paper compares nanotechnology landscapes between 2001 and 2017 as reflected in the United States Patent and Trademark Office (USPTO) and China National Intellectual Property Administration (CNIPA). It presents the evolution of nanotechnology patent development in the US and China, the differences between nanotechnology topics addressed in the USPTO and CNIPA patents, key players in nanotechnology fields in both domestic and foreign markets, and the player collaboration patterns. Bibliographic, content, and social network analyses are used. The longitudinal changes of granted patents and ranked countries, patent families, technology fields, and key players in domestic and overseas markets are outlined. Collaboration networks of assignees and the influential players have been identified based on network parameters. Results show that the US market attracts more international collaborations and has a higher level of knowledge exchange and resource sharing than the Chinese market. Companies play a vital role with regard to US nanotechnology development, resulting in more within-industry collaborations. In contrast, universities and research institutes are the dominant contributors to China’s nanotechnology development, leading to more academia-industry collaborations in China’s market.