Inventor

ZHANG ZHONGHAI

CN4 patents

⚠️ This page may combine multiple inventors who share the name “ZHANG ZHONGHAI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

XUZHOU XUGONG FOUNDATION CONSTR MACHINERY CO

2 patents

US11603751B2Mar 14, 2023

Push-pull force control method for horizontal directional drilling machine and horizontal directional drilling machine

XUZHOU XUGONG FOUNDATION CONSTR MACHINERY CO0 citations43

US10041298B2Aug 7, 2018

Detachable combined-type drive key for rotary drilling rig power head

XUZHOU XUGONG FOUNDATION CONSTR MACHINERY CO0 citations30

Shenzhen grandsun electronic co ltd

1 patent

US10917577B2Feb 9, 2021

Method and device for controlling camera shooting, smart device, and storage medium

Shenzhen grandsun electronic co ltd3 citations71

XCMG FOUND CONSTRUCTION MACHINERY CO LTD

1 patent

US12371948B2Jul 29, 2025

Wire-guided automatic pay-off device and method

XCMG FOUND CONSTRUCTION MACHINERY CO LTD0 citations34