Statistical Table on the Quality of Authorized Invention Patents for A-share Listed CompaniesTime Period (时间区间) 1990-2023 Field Display (字段展示) Sample Data Statistical Table on the Quality of Authorized Invention Patents for A-share Listed Companies Data Update Frequency (数据更新频率) Annual Update
Time Period (时间区间) 1990-2023 Field Display (字段展示) Sample Data Statistical Table on the Quality of Authorized Invention Patents for A-share Listed Companies Data Update Frequency (数据更新频率) Annual Update