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POLAR SPRING CORP

Overview
  • Total Patents
    12
About

POLAR SPRING CORP has a total of 12 patent applications. Its first patent ever was published in 1987. It filed its patents most often in United States, EPO (European Patent Office) and Australia. Its main competitors in its focus markets environmental technology, chemical engineering and consumer goods are SUZHOU CPS TECH CO LTD, SHANGHAI HONESS ENV TECH CORP and NANJING G & W ENVIRONMENT ENGINEERING CO LTD.

Patent filings in countries

World map showing POLAR SPRING CORPs patent filings in countries

Patent filings per year

Chart showing POLAR SPRING CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Conlon William M 5
#2 Hendricks Donald M 4
#3 Chang C N 3
#4 Chang Chung N 3
#5 Chang Chung Nan 2
#6 Chang Chung-Nan 1

Latest patents

Publication Filing date Title
US5555747A Control of crystal growth in water purification by directional freeze crystallization
US5231852A Melt system for liquid purification by batch crystallization
US5113664A Melt system for liquid purification by batch crystallization
US4954151A Method and means for optimizing batch crystallization for purifying water
US4799945A Dual freezing chamber system and method for water purification