Inventor
CHANG SE DONG
KR20 patents
⚠️ This page may combine multiple inventors who share the name “CHANG SE DONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LG ELECTRONICS INC
19 patentsUS7823397B2Nov 2, 2010
System and method for detecting clogged state of pipe of heat pump type multi-air conditioner
LG ELECTRONICS INC9 citations83
US7464563B2Dec 16, 2008
Air-conditioner having a dual-refrigerant cycle
LG ELECTRONICS INC20 citations83
US7386994B2Jun 17, 2008
Oil separator and cooling-cycle apparatus using the same
LG ELECTRONICS INC8 citations73
US6952933B2Oct 11, 2005
Multi-type air conditioner
LG ELECTRONICS INC10 citations71
US7721559B2May 25, 2010
Multi-type air conditioner and method for controlling the same
LG ELECTRONICS INC4 citations62
US7621138B2Nov 24, 2009
Abnormal state detecting apparatus of multi-type air conditioner and method thereof
LG ELECTRONICS INC5 citations62
US7272943B2Sep 25, 2007
Control method for multiple heat pump
LG ELECTRONICS INC4 citations62
US7181917B2Feb 27, 2007
Control method for four-way valve of multiple heat pump
LG ELECTRONICS INC5 citations62
US7650759B2Jan 26, 2010
Apparatus for controlling refrigerant level
LG ELECTRONICS INC4 citations61
US7415838B2Aug 26, 2008
Second-refrigerant pump driving type air conditioner
LG ELECTRONICS INC5 citations61
US7171818B2Feb 6, 2007
System and method for controlling temperature of refrigerant in air conditioner
LG ELECTRONICS INC4 citations61
US7765812B2Aug 3, 2010
System for detecting mis-connected state between communication lines for multi-type air conditioner and method thereof
LG ELECTRONICS INC4 citations60
US7735328B2Jun 15, 2010
Apparatus and method for monitoring state information in trial run mode of multi-airconditioner
LG ELECTRONICS INC2 citations58
US7624590B2Dec 1, 2009
Multi-type air conditioner
LG ELECTRONICS INC2 citations58
US7131283B2Nov 7, 2006
Method for controlling multi-type air conditioner
LG ELECTRONICS INC6 citations58
US7690216B2Apr 6, 2010
Oil separator for air conditioners
LG ELECTRONICS INC1 citations51
US7673465B2Mar 9, 2010
Air-conditioning system and apparatus for protecting the same
LG ELECTRONICS INC1 citations51
US7467521B2Dec 23, 2008
Method for controlling multi-type air conditioner
LG ELECTRONICS INC0 citations50
US7343756B2Mar 18, 2008
Air conditioning system
LG ELECTRONICS INC0 citations40