Inventor
DONG QUAN
US9 patents
⚠️ This page may combine multiple inventors who share the name “DONG QUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
XUZHOU HEAVY MACHINERY CO LTD
5 patentsUS10822211B2Nov 3, 2020
Crane hydraulic control system and crane
XUZHOU HEAVY MACHINERY CO LTD1 citations54
US10465725B2Nov 5, 2019
Cylinder head body, single cylinder bolt system and crane
XUZHOU HEAVY MACHINERY CO LTD0 citations48
US10544013B2Jan 28, 2020
Power transmission control method and device for crane and crane
XUZHOU HEAVY MACHINERY CO LTD0 citations45
US10077173B2Sep 18, 2018
Single-cylinder plug pin type telescopic arm, telescopic method thereof and crane having telescopic arm
XUZHOU HEAVY MACHINERY CO LTD0 citations35
US10150656B2Dec 11, 2018
Mobile counterweight mechanism of a hoisting machine as well as a hoisting machine
XUZHOU HEAVY MACHINERY CO LTD0 citations31