Inventor
LIU QINGHUA
US14 patents
⚠️ This page may combine multiple inventors who share the name “LIU QINGHUA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HYPERTHERM INC
3 patentsUS9510436B2Nov 29, 2016
Wide bandgap semiconductor based power supply assemblies for plasma operating systems and related methods and devices
HYPERTHERM INC5 citations72
US9908195B2Mar 6, 2018
Plasma cutting system with efficient components
HYPERTHERM INC3 citations71
US10820401B2Oct 27, 2020
Operating plasma arc processing systems at reduced current and gas pressure levels and related systems and methods
HYPERTHERM INC0 citations47