Shanghai
China
4
2020-12-03
The entities that hold a legal rights for patent applications filed by inventor CHEN Yalan:
Yalan CHEN from Shanghai, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
Hand air pump handle assembly and hand air pump
#2 | 2019-10-03Electric air pump system
#3 | 2019-07-18AIR VALVE ASSEMBLY
#4 | 2019-07-11ELECTRIC AIR PUMP
2555909 ⎘