Patent statistics analysis since the foundation of China
GAO Jiping
Science & Technology Review . 2021, (17): 99 -105 .  DOI: 10.3981/j.issn.1000-7857.2021.17.012

Contact

  • Add：No. 86 Xueyuan South Road, Haidian District, Beijing　 Postal Code：100081
  • Tel: +86-10-62138113　Fax: +86-10-62138113
  • E-mail：kjdbbjb@cast.org.cn

    • Visited

      Total visitors:
      Visitors of today:
      Now online:
    Copyright © Science & Technology Review, All Rights Reserved.