P

Inventor

ZHANG RUIGANG

US38 patents
⚠️ This page may combine multiple inventors who share the name “ZHANG RUIGANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD

14 patents
US12000605B2Jun 4, 2024

Method for controlling balanced frosting of outdoor units in multi-split air-conditioning system

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD0 citations61
US11346569B2May 31, 2022

Method and apparatus for controlling device

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD0 citations61
US11287156B2Mar 29, 2022

Method for controlling air conditioner compressor frequency based on vibration of pipeline

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD1 citations58
US12104817B2Oct 1, 2024

Control method for multi-split air conditioning system capable of simultaneous cooling and heating

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD0 citations51
US12061004B2Aug 13, 2024

Expansion valve control method for multi-connection air-conditioning system

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD0 citations51
US11300313B2Apr 12, 2022

Cooling medium control method for multi-connected air conditioning system

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD0 citations51
US11190483B2Nov 30, 2021

Address competition method of multi-connection type control system

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD0 citations51
US11181288B2Nov 23, 2021

Comfort degree balance control method and system for multi-split air conditioner

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD0 citations51
US11611455B2Mar 21, 2023

Method and device for communication detection and air conditioner

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD0 citations50
US11536495B2Dec 27, 2022

VRV oil return control method and system

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD0 citations50
US11477056B2Oct 18, 2022

Method and apparatus for controlling communication compensation, and air conditioner

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD0 citations49
US11552818B2Jan 10, 2023

Relay device and multi-split air-conditioning control systems

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD0 citations48
US11336616B2May 17, 2022

Address competition method of multi-connected type control system

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD0 citations48
US11320185B2May 3, 2022

Defrosting control method for multi-split system

QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD0 citations47

TOYOTA ENG & MFG NORTH AMERICA

9 patents

TOYOTA MOTOR ENG & MFG NORTH AMERICA INC

7 patents

CUMMINS INC

4 patents

TOSHIBA KK

2 patents

SONG WEI

1 patent

SHANXI TIANHE NEW MATERIAL TECH CO LTD

1 patent