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.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 5 | |
#2 | EPO (European Patent Office) | 2 | |
#3 | Australia | 1 | |
#4 | Brazil | 1 | |
#5 | Canada | 1 | |
#6 | Republic of Korea | 1 | |
#7 | Mexico | 1 |
# | Industry | |
---|---|---|
#1 | Environmental technology | |
#2 | Chemical engineering | |
#3 | Consumer goods |
# | Technology | |
---|---|---|
#1 | Water treatment | |
#2 | Separation | |
#3 | Ice-boxes | |
#4 | Climate change adaptation technologies |
# | 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 |
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 |