Shigui JIANG

Follow

Person

Wuhan, Hubei, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Hybrid bit with roller cones having inserts
- Patent number 11,326,402
- Issue date May 10, 2022
- KINGDREAM PUBLIC LIMITED COMPANY
- Guanfu Tu
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
HYBRID BIT WITH ROLLER CONES HAVING INSERTS
- Publication number 20210087886
- Publication date Mar 25, 2021
- KINGDREAM PUBLIC LIMITED COMPANY
- Guanfu TU
- E21 - EARTH DRILLING MINING