Beijing
China
3
2022-09-01
The entities that hold a legal rights for patent applications filed by inventor Cheng Weiguo:
Weiguo Cheng from Beijing, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
COMPOSITE ABSORBENT AND USE THEREOF
#2 | 2021-10-28System and process for co-producing dimethyl carbonate and ethylene glycol
#3 | 2013-03-21Process for producing ethylene glycol catalyzed by ionic liquid
155004 ⎘