JIGUANG ZHANG

Follow

Person

Xuzhou, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Push-pull force control method for horizontal directional drilling...
- Patent number 11,603,751
- Issue date Mar 14, 2023
- XUZHOU XUGONG FOUNDATION CONSTRUCTION MACHINERY CO., LTD
- Li Zhang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Detachable combined-type drive key for rotary drilling rig power head
- Patent number 10,041,298
- Issue date Aug 7, 2018
- XUZHOU XUGONG FOUNDATION CONSTRUCTION MACHINERY CO., LTD
- Xiaoliang Li
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
PUSH-PULL FORCE CONTROL METHOD FOR HORIZONTAL DIRECTIONAL DRILLING...
- Publication number 20220003109
- Publication date Jan 6, 2022
- XUZHOU XUGONG FOUNDATION CONSTRUCTION MACHINERY CO., LTD.
- Li ZHANG
- E21 - EARTH DRILLING MINING
Information Patent Application
DETACHABLE COMBINED-TYPE DRIVE KEY FOR ROTARY DRILLING RIG POWER HEAD
- Publication number 20160032652
- Publication date Feb 4, 2016
- XUZHOU XUGONG FOUNDATION CONSTRUCTION MACHINERY CO., LTD.
- XIAOLIANG LI
- E21 - EARTH DRILLING MINING