CHANG JO 21 CO., LTD

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Gyeonggi-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Air conditioning system for communication equipment
- Patent number 8,667,810
- Issue date Mar 11, 2014
- Chang Jo 21 Co., Ltd.
- Hee Tae Park
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Air conditioning system for communication equipment and controlling...
- Patent number 8,667,805
- Issue date Mar 11, 2014
- Chang Jo 21 Co., Ltd.
- Hee Tae Park
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Air conditioning system for communication equipment and controlling...
- Patent number 8,322,159
- Issue date Dec 4, 2012
- Chang Jo 21 Co., Ltd.
- Hee Tae Park
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Air conditioning system for communication equipment and controlling...
- Patent number 7,984,621
- Issue date Jul 26, 2011
- Chang Jo 21 Co., Ltd.
- Hee Tae Park
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Air conditioner for communication equipment and controlling method...
- Patent number 7,874,171
- Issue date Jan 25, 2011
- Chang Jo 21 Co., Ltd.
- Hee Tae Park
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Air Conditioning System for Communication Equipment and Controlling...
- Publication number 20100236263
- Publication date Sep 23, 2010
- CHANG JO 21 CO., LTD.
- Hee Tae Park
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
AIR CONDITIONING SYSTEM FOR COMMUNICATION EQUIPMENT AND CONTROLLING...
- Publication number 20090056370
- Publication date Mar 5, 2009
- CHANG JO 21 CO., LTD
- Hee Tae Park
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Air Conditioner For Communication Equipment And Controlling Method...
- Publication number 20090019874
- Publication date Jan 22, 2009
- CHANG JO 21 CO., LTD.
- Hee Tae Park
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
Air Conditioning System for Communication Equipment and Controlling...
- Publication number 20080250807
- Publication date Oct 16, 2008
- CHANG JO 21 CO., LTD
- Hee Tae Park
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Trademarklast 30 trademarks