CHANG SIN INTERNAT CO LTD innovation strategy

Patent filings in countries

#	Country	Total Patents
#1	Republic of Korea	15
#2	United States	1
#3	WIPO (World Intellectual Property Organization)	1

#	Technology
#1	Earth drilling
#2	Special wind, spring and weight motors
#3	Reduction of greenhouse gas emissions
#4	Machines for liquids
#5	Air-conditioning
#6	Wind motors
#7	Water treatment
#8	Climate change mitigation in goods production
#9	Separation
#10	Climate change mitigation in buildings

Publication	Filing date	Title
KR101661426B1	2015-05-29	Combination hammer with water hammer
KR20160033476A	2014-09-18	Hammer for drilling
KR20160033478A	2014-09-18	Overburden bit
KR101524072B1	2014-01-09	Rod mounting apparatus for excavator
KR20150075500A	2013-12-26	variable diameter type combination hamer
KR20150072466A	2013-12-19	generator with roof exhaust fan
KR101496833B1	2013-12-09	liner-type electric generator using waves
KR20140122004A	2013-04-09	drain water with soil recycling device
KR20130087854A	2012-01-30	Complex hammer air displacement volume controlled
KR101167854B1	2011-12-02	Air supply method for cluster hammer with nozzle
KR20130032185A	2011-09-22	Water hammer protect device for water powered hammer
KR20130032179A	2011-09-22	Water powered hammer
KR20120090373A	2011-02-07	Hammer fluid distribute control valve
KR20100089050A	2010-07-22	Water operating hammer
KR20070113821A	2006-05-26	Auger hammer