Inventor
YU PING-CHENG
TW8 patents
Patents
8 patentsUS10578065B1Mar 3, 2020
Two-stage intake and two-stage discharge structure of electrically controlled proportional valve
TAIWAN CHELIC CO LTD8 citations80
US10670163B1Jun 2, 2020
Electrically-controlled large-capacity proportional valve
TAIWAN CHELIC CO LTD5 citations69
US10352464B2Jul 16, 2019
Structure of energy-saving precision pressure adjusting valve
TAIWAN CHELIC CO LTD2 citations69
US10732650B1Aug 4, 2020
Vacuum large-capacity electrically controlled proportional valve
TAIWAN CHELIC CO LTD2 citations68
US10704701B1Jul 7, 2020
Vacuum electrically controlled proportional valve
TAIWAN CHELIC CO LTD5 citations68
US10865909B2Dec 15, 2020
Vacuum-keeping multistage vacuum-generating and vacuum-destructing valve
TAIWAN CHELIC CO LTD4 citations62
US10794497B2Oct 6, 2020
Vacuum-based energy-saving large-capacity precision pressure regulation valve
TAIWAN CHELIC CO LTD1 citations59
US12276288B1Apr 15, 2025
Two-stage speed controller
TAIWAN CHELIC CO LTD0 citations43