Study on the Effect of Patentee Types and the Patent Location on the Patent Maintenance Time of SiC Ceramics

4th Annual International Workshop on Materials Science and Engineering

Liu, Leyu^1 ; Qiao, Yongzhong^2

College of Materials, Xiamen University, Xiamen

361005, China^1

Intellectual Property Research Institute, Xiamen University, 361005, China^2

关键词: Maintenance time;    Material technologies;    Scientific research institutes;    SiC ceramics;    Type of technology;    Zhejiang Province;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/381/1/012112/pdf
DOI  :  10.1088/1757-899X/381/1/012112

来源: IOP

【 摘 要 】

The development of SiC ceramic technology reflects the development of modern material technology. At present in China, the invention patent is the main type of technology patents of SiC ceramics, and the patentees are mainly universities and scientific research institutes. However, it is discovered that the enterprise invention patents have the longest average maintenance time. In addition, the number of invention patents in Zhejiang province ranks the first in China, but the average patent maintenance time in Beijing and Shanghai is relatively longer.