Patents/Inventors

Duanwei He

ChengduCN2 patents

3 Patents

US120428682024
Producing Catalyst-free PDC Cutters
Chengdu Dongwei Technology Co., Ltd
0 cites
US120244702024
Fabrication of Downhole Drilling Tools
Chengdu Dongwei Technology Co., Ltd.
0 cites
US118663722024
Bn) Drilling Tools Made of Wurtzite Boron Nitride (W-BN)
Chengdu Dongwei Technology Co., Ltd
0 cites