Kunming
China
2
2024-05-02
The entities that hold a legal rights for patent applications filed by inventor Zhou Yangyi:
Yangyi Zhou from Kunming, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
ACTIVE CONTROL METHOD AND DEVICE FOR LARGE DEFORMATION OF DEEP THIN-BEDDED SURROUNDING ROCK
#2 | 2024-05-02ZONAL BOLT-GROUTING SUPPORT DEVICE AND METHOD FOR CATACLASTIC ROCK MASS LARGE DEFORMATION OF HIGH-STRESS TUNNEL
6644586 ⎘