Kunming
China
3
2021-04-22
The entities that hold a legal rights for patent applications filed by inventor Wang Langlang:
Langlang Wang from Kunming, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
Method for production of ammonium phosphate from phosphate rock slurry
#2 | 2020-10-22Method for preparing iron ore concentrates by recycling copper slag tailings
#3 | 2020-06-25Method of preparing catalyst for low-temperature synergistic catalytic purification of NOand HCN in flue gas, and use thereof
2770953 ⎘