Inventor

LIU RANRONG

CN2 patents

Patents

2 patents

US12098086B2Sep 24, 2024

Device for advanced nitrogen and phosphorus removal in sewage treatment

YUNNAN HEXU ENVIRONMENTAL TECH CO LTD0 citations42

US11955968B2Apr 9, 2024

Combined logic control circuit and sewage treatment system

YUNNAN HEXU ENVIRONMENTAL TECH CO LTD0 citations34