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POLAR SPRING CORPORATION
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MENLO PARK, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Control of crystal growth in water purification by directional free...
Patent number
5,555,747
Issue date
Sep 17, 1996
Polar Spring Corporation
William M. Conlon
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Melt system for liquid purification by batch crystallization
Patent number
5,231,852
Issue date
Aug 3, 1993
Polar Spring Corporation
William M. Conlon
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Melt system for liquid purification by batch crystallization
Patent number
5,113,664
Issue date
May 19, 1992
Polar Spring Corporation
William M. Conlon
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Method and means for optimizing batch crystallization for purifying...
Patent number
4,954,151
Issue date
Sep 4, 1990
Polar Spring Corporation
Chung-Nan Chang
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Dual freezing chamber system and method for water purification
Patent number
4,799,945
Issue date
Jan 24, 1989
Polar Spring Corporation
Chung N. Chang
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73792149 - ICEHAUS
Serial number
73792149
Registration number
1567005
Filing date
Apr 10, 1989
POLAR SPRING CORPORATION
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
73792160
Serial number
73792160
Registration number
1569514
Filing date
Apr 10, 1989
POLAR SPRING CORPORATION
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes