Inventor
ZHANG YONGHUA
US15 patents
⚠️ This page may combine multiple inventors who share the name “ZHANG YONGHUA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GENENTECH INC
3 patentsXUZHOU XUGONG FOUNDATION CONSTR MACHINERY CO
2 patentsUS11603751B2Mar 14, 2023
Push-pull force control method for horizontal directional drilling machine and horizontal directional drilling machine
XUZHOU XUGONG FOUNDATION CONSTR MACHINERY CO0 citations43
US12091293B2Sep 17, 2024
Main hoist system of rotary drilling rig, and control method therefor
XUZHOU XUGONG FOUNDATION CONSTR MACHINERY CO0 citations38
SHANDONG KEYUAN WATER SUPPLY AND DRAINAGE EQUIPMENT ENG CO LTD
2 patentsUS11280068B2Mar 22, 2022
Leveling differential-pressure diversion peak-shaving water tank with function of preventing stagnant water and stale water and water supply pumping station
SHANDONG KEYUAN WATER SUPPLY AND DRAINAGE EQUIPMENT ENG CO LTD0 citations42
US11281243B2Mar 22, 2022
Safety device for hydrodynamic pressure regulating pipe network
SHANDONG KEYUAN WATER SUPPLY AND DRAINAGE EQUIPMENT ENG CO LTD0 citations38