CHANG SUNG CO LTD has a total of 23 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 1995. It filed its patents most often in WIPO (World Intellectual Property Organization), Republic of Korea and China. Its main competitors in its focus markets materials and metallurgy, electrical machinery and energy and semiconductors are NINGBO PERMANENT MAGNETICS CO LTD, FOSHAN CATECH CO LTD and ZHEJIANG DONGYANG DONGCI RARE EARTH CO LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | WIPO (World Intellectual Property Organization) | 13 | |
#2 | Republic of Korea | 5 | |
#3 | China | 3 | |
#4 | EPO (European Patent Office) | 1 | |
#5 | United States | 1 |
# | Technology | |
---|---|---|
#1 | Working metallic powder | |
#2 | Cables and insulators | |
#3 | Magnets and transformers | |
#4 | Alloys | |
#5 | Semiconductor devices | |
#6 | Reduction of greenhouse gas emissions | |
#7 | Casings and printed circuits | |
#8 | Working stone | |
#9 | Treatment of glass | |
#10 | Layered products |
# | Name | Total Patents |
---|---|---|
#1 | Lee Jae-Wook | 7 |
#2 | Park Ki-Bum | 7 |
#3 | Lee Jung-Woong | 7 |
#4 | Park Seong-Yong | 7 |
#5 | Lee Byoung-Yoon | 7 |
#6 | You Jae-Lim | 5 |
#7 | Yang Seung-Jin | 4 |
#8 | Lee Tae Kyung | 4 |
#9 | Yang Seung Nam | 4 |
#10 | Choi Sung Jin | 4 |
Publication | Filing date | Title |
---|---|---|
WO2016117718A1 | Electromagnetic wave shielding and absorbing sheet and manufacturing method of the same | |
KR100767261B1 | Rotating type blade made of different materials and manufacturing process thereof | |
KR20050040509A | Health supplement foods using crucian carp as main materials | |
KR20050010090A | blade of big diameter | |
KR20040065365A | Method of making blade | |
KR0152737B1 | Method for crushing heat-treatment mpp core powder |