Inventor
ZHANG LIYAN
CN18 patents
⚠️ This page may combine multiple inventors who share the name “ZHANG LIYAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GREENTECH ENV CO LTD
7 patentsUS11772999B2Oct 3, 2023
System and method for treating reverse-osmosis concentrated water with high temporary hardness
GREENTECH ENV CO LTD2 citations69
US12486179B2Dec 2, 2025
Control method for delaying nanofiltration membrane aluminum fouling of water treatment system
GREENTECH ENV CO LTD0 citations48
US12162783B2Dec 10, 2024
Saline wastewater treatment method and system
GREENTECH ENV CO LTD0 citations48
US12145869B2Nov 19, 2024
Hollow fiber nanofiltration membrane system and control method thereof
GREENTECH ENV CO LTD0 citations48
US11440819B2Sep 13, 2022
Dosing control method and system for micro-flocculation in ultrafiltration
GREENTECH ENV CO LTD0 citations48
US12509374B2Dec 30, 2025
System and method for softening high-salinity water via self-induced calcium bicarbonate crystallization in fluidized bed
GREENTECH ENV CO LTD0 citations46
US12151210B2Nov 26, 2024
Method for controlling hollow fiber nanofiltration membrane system with controllable power consumption
GREENTECH ENV CO LTD0 citations46
LUCENT TECHNOLOGIES INC
4 patentsUS6323950B1Nov 27, 2001
Chromatic dispersion measurement for optical components
LUCENT TECHNOLOGIES INC86 citations97
US6330104B1Dec 11, 2001
Optical wavelength conversion using four wave mixing in fiber
LUCENT TECHNOLOGIES INC30 citations92
US6763190B2Jul 13, 2004
Network auto-provisioning and distributed restoration
LUCENT TECHNOLOGIES INC60 citations90
US6381560B1Apr 30, 2002
Methods of modeling erbium doped fiber amplifiers
LUCENT TECHNOLOGIES INC11 citations72