CHANG SEAN has a total of 15 patent applications. Its first patent ever was published in 2002. It filed its patents most often in United States. Its main competitors in its focus markets computer technology, electrical machinery and energy and optics are PELTON WALTER E, OGASAWARA TAKESHI and STAF CORP.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 15 |
# | Industry | |
---|---|---|
#1 | Computer technology | |
#2 | Electrical machinery and energy | |
#3 | Optics | |
#4 | Audio-visual technology | |
#5 | Environmental technology | |
#6 | Machines | |
#7 | Mechanical elements |
# | Technology | |
---|---|---|
#1 | Electric digital data processing | |
#2 | Dynamo-electric machines | |
#3 | Optical systems | |
#4 | Shafts | |
#5 | Batteries | |
#6 | Television | |
#7 | Reduction of greenhouse gas emissions | |
#8 | Unspecified technologies | |
#9 | Cameras | |
#10 | Special information storage |
# | Name | Total Patents |
---|---|---|
#1 | Chang Sean | 15 |
#2 | Chang Chii-How | 7 |
#3 | Kuo Chin-Wei | 3 |
#4 | Yu Ching-Hsiang | 2 |
#5 | Chen Li-Ming | 2 |
#6 | Wu Chia-Chi | 1 |
#7 | Chen Yang-Lin | 1 |
#8 | Lai Chin-Chun | 1 |
#9 | Lin Albert | 1 |
#10 | Chang Shih-Shiun | 1 |
Publication | Filing date | Title |
---|---|---|
US2012032918A1 | Touch screen apparatus | |
US2008116757A1 | Motor having magnetic fluid bearing structure | |
US2009074953A1 | Lithium cell cathode | |
US2003179468A1 | Optical component |