Shanghai
China
3
2026-05-14
The entities that hold a legal rights for patent applications filed by inventor Gu Yan:
Yan Gu from Shanghai, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
Cat litter additive for detecting pH value of cat urine and a preparation method thereof
#2 | 2023-05-11Safety syringe
#3 | 2020-07-23THROTTLING DISTRIBUTION ASSEMBLY AND REFRIGERATION SYSTEM
2800587 ⎘