TC

Tengteng Chang

C( China University Of Geosciences (Beijing): 1 patents #1 of 32Top 4%
Overall (2023): #232,769 of 537,848Top 45%
1
Patents 2023

Issued Patents 2023

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11598151 Downhole power drilling tool having multi-stage dual plunger eccentric gear mechanism Yu Wang, Jiaxing Lu, Zhiqiao Wang, Baolin Liu, Qin Zhou 2023-03-07