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Seoul, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Thermoelectric cooling device for purified water tank
Patent number
5,675,973
Issue date
Oct 14, 1997
Chung Ho NAIS Incorporation
Joung Whi Dong
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Water cooling device for water purifiers
Patent number
5,609,033
Issue date
Mar 11, 1997
Chung Ho NAIS Incorporation
Joung W. Dong
B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
Information
Patent Grant
Heat dissipating device for water purifier's thermoelement
Patent number
5,503,739
Issue date
Apr 2, 1996
Chung Ho NAIS Incorporation
Joung W. Dong
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL