Release Time:2024-05-08  Hits:

Indexed by: Journal Papers

Document Code: 374242

Date of Publication: 2023-02-26

Journal: 郑州航空工业管理学院学报

Volume: 41

Issue: 01

Page Number: 5-10

ISSN: 1007-9734

Key Words: IP-intensive industries; United States Patent and Trademark Office; U.S.economy

CN: 41-1200/V