Qing Qian

UN Unknown: 1 patents #265 of 3,190Top 9%

ZC Zhe Jiang Yiyang Tool Manufacture Co.: 1 patents #3 of 3Top 100%

Overall (2018): #272,288 of 503,207Top 55%

Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
9884409	Pipe wrench	Chun-Wei Yang, Zhe Zhang	2018-02-06