Chang; Se Dong
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Se Dong.The latest application filed is for "cogeneration system".
Company Profile
0.20.37
- Chang; Se Dong - Kwangmyung-si KR
- Chang; Se-Dong - Gyeonggi-Do KR
- Chang; Se Dong - Gwangmyeong-si KR
- Chang; Se-Dong - Gwangmyeong KR
- Chang; Se Dong - Kqangmyung-si KR
- Chang; Se-Dong - Seoul KR
- CHANG; Se Dong - Kyungki-do KR
- Chang; Se Dong - Gwangmyeon-si KR
Patent Activity
| Patent | Date |
|---|---|
| Co-generation and control method of the same Grant 8,245,948 - Cho , et al. August 21, 2 | 2012-08-21 |
| System and method for detecting clogged state of pipe of heat pump type multi-air conditioner Grant 7,823,397 - Chang , et al. November 2, 2 | 2010-11-02 |
| System for detecting mis-connected state between communication lines for multi-type air conditioner and method thereof Grant 7,765,812 - Chang , et al. August 3, 2 | 2010-08-03 |
| Apparatus and method for monitoring state information in trial run mode of multi-airconditioner Grant 7,735,328 - Kim , et al. June 15, 2 | 2010-06-15 |
| Multi-type air conditioner and method for controlling the same Grant 7,721,559 - Choi , et al. May 25, 2 | 2010-05-25 |
| Oil separator for air conditioners Grant 7,690,216 - Chang , et al. April 6, 2 | 2010-04-06 |
| Air-conditioning system and apparatus for protecting the same Grant 7,673,465 - Choi , et al. March 9, 2 | 2010-03-09 |
| Apparatus for controlling refrigerant level Grant 7,650,759 - Park , et al. January 26, 2 | 2010-01-26 |
| Multi-type air conditioner Grant 7,624,590 - Choi , et al. December 1, 2 | 2009-12-01 |
| Abnormal state detecting apparatus of multi-type air conditioner and method thereof Grant 7,621,138 - Lee , et al. November 24, 2 | 2009-11-24 |
| Method for controlling multi-type air conditioner Grant 7,467,521 - Chang , et al. December 23, 2 | 2008-12-23 |
| Air-conditioner having a dual-refrigerant cycle Grant 7,464,563 - Park , et al. December 16, 2 | 2008-12-16 |
| Second-refrigerant pump driving type air conditioner Grant 7,415,838 - Park , et al. August 26, 2 | 2008-08-26 |
| Oil separator and cooling-cycle apparatus using the same Grant 7,386,994 - Chang , et al. June 17, 2 | 2008-06-17 |
| Air conditioning system Grant 7,343,756 - Chang , et al. March 18, 2 | 2008-03-18 |
| Cogeneration System App 20080036211 - LEE; Jae Won ; et al. | 2008-02-14 |
| Co-generation App 20080022707 - Cho; Eun Jun ; et al. | 2008-01-31 |
| Co-generation and control method of the same App 20080023961 - Cho; Eun Jun ; et al. | 2008-01-31 |
| Co-generation App 20080022708 - Cho; Eun Jun ; et al. | 2008-01-31 |
| Control method for multiple heat pump Grant 7,272,943 - Hwang , et al. September 25, 2 | 2007-09-25 |
| Control method for four-way valve of multiple heat pump Grant 7,181,917 - Hwang , et al. February 27, 2 | 2007-02-27 |
| System and method for controlling temperature of refrigerant in air conditioner Grant 7,171,818 - Oh , et al. February 6, 2 | 2007-02-06 |
| Cogeneration System And Method For Controlling The Same App 20070018009 - Choi; Chang Min ; et al. | 2007-01-25 |
| Cogeneration System App 20070012058 - CHO; Eun Jun ; et al. | 2007-01-18 |
| Cogeneration System App 20070012418 - CHO; Eun Jun ; et al. | 2007-01-18 |
| Cogeneration System App 20060283967 - CHO; Eun Jun ; et al. | 2006-12-21 |
| Hybrid generation system and control method thereof App 20060259200 - Choi; Chang Min ; et al. | 2006-11-16 |
| Method for controlling multi-type air conditioner Grant 7,131,283 - Oh , et al. November 7, 2 | 2006-11-07 |
| Cogeneration system App 20060242977 - Cho; Eun Jun ; et al. | 2006-11-02 |
| Second-refrigerant pump driving type air conditioner App 20060191286 - Park; Bong-Soo ; et al. | 2006-08-31 |
| Method for controlling multi-type air conditioner App 20060123803 - Chang; Se Dong ; et al. | 2006-06-15 |
| Apparatus and method for monitoring state information in trial run mode of multi-airconditioner App 20060123808 - Kim; Kwang Woon ; et al. | 2006-06-15 |
| Cooling/heating system and method for controlling the same App 20060117778 - Oh; Sai Kee ; et al. | 2006-06-08 |
| Multi-type air conditioner and method for controlling the same App 20060117776 - Choi; Jae Heuk ; et al. | 2006-06-08 |
| Air conditioning system App 20060112713 - Chang; Se-Dong ; et al. | 2006-06-01 |
| Air conditioning system App 20060112712 - Chang; Se-Dong ; et al. | 2006-06-01 |
| Oil separator and cooling-cycle apparatus using the same App 20060112724 - Chang; Seung Yong ; et al. | 2006-06-01 |
| Air conditioning system and method for controlling the same App 20060107683 - Song; Chi Woo ; et al. | 2006-05-25 |
| Oil separator for air conditioners App 20060107687 - Chang; Se Dong ; et al. | 2006-05-25 |
| Refrigerant filtering apparatus for air conditioners App 20060101846 - Kim; Sung Hwan ; et al. | 2006-05-18 |
| Air-conditioning system and apparatus for protecting the same App 20060090495 - Choi; Jae Heuk ; et al. | 2006-05-04 |
| Communication system of a multi-type air-conditioner and method thereof App 20060090483 - Kim; Sung Hwan ; et al. | 2006-05-04 |
| Air conditioner App 20060090487 - Park; Bong-Soo ; et al. | 2006-05-04 |
| System and method for detecting clogged state of pipe of heat pump type multi-air conditioner App 20060086105 - Chang; Se-Dong ; et al. | 2006-04-27 |
| Abnormal state detecting apparatus of multi-type air conditioner and method thereof App 20060086103 - Lee; Yoon-Been ; et al. | 2006-04-27 |
| System for detecting mis-connected state between communication lines for multi-type air conditioner and method thereof App 20060086104 - Chang; Se-Dong ; et al. | 2006-04-27 |
| Air conditioner App 20060080990 - Lee; Yoon Been ; et al. | 2006-04-20 |
| Apparatus for controlling refrigerant level App 20060075763 - Park; Bong-Soo ; et al. | 2006-04-13 |
| Air conditioner App 20060070719 - Kim; Sung Hwan ; et al. | 2006-04-06 |
| Air-conditioner having a dual-refrigerant cycle App 20060070391 - Park; Bong-Soo ; et al. | 2006-04-06 |
| Multi-type air conditioner Grant 6,952,933 - Song , et al. October 11, 2 | 2005-10-11 |
| Control method for four-way valve of multiple heat pump App 20050193748 - Hwang, Il Nahm ; et al. | 2005-09-08 |
| Engine-operated or electrically-operated air conditioner and control method for the same App 20050193754 - Chang, Se Dong ; et al. | 2005-09-08 |
| Control method for multiple heat pump App 20050193749 - Hwang, Il Nahm ; et al. | 2005-09-08 |
| Method for controlling multi-type air conditioner App 20050155368 - Oh, Il Kwon ; et al. | 2005-07-21 |
| System and method for controlling temperature of refrigerant in air conditioner App 20050081543 - Oh, Il Kwon ; et al. | 2005-04-21 |
| Multi-type air conditioner App 20040134214 - Song, Jin Seob ; et al. | 2004-07-15 |
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