CHANG CHIH-KUANG has a total of 114 patent applications. Its first patent ever was published in 2004. It filed its patents most often in United States. Its main competitors in its focus markets computer technology, measurement and optics are INUS TECHNOLOGY INC, WUHAN INFOEARTH INFORMATION CO LTD and CONSULTING ENG CORP.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 114 |
# | Industry | |
---|---|---|
#1 | Computer technology | |
#2 | Measurement | |
#3 | Optics | |
#4 | Control | |
#5 | Audio-visual technology | |
#6 | Environmental technology |
# | Name | Total Patents |
---|---|---|
#1 | Chang Chih-Kuang | 114 |
#2 | Wu Xin-Yuan | 62 |
#3 | Jiang Li | 31 |
#4 | Yuan Zhong-Kui | 31 |
#5 | Xue Xiao-Guang | 21 |
#6 | Li Dong-Hai | 19 |
#7 | Wang Min | 18 |
#8 | Chen Xian-Yi | 14 |
#9 | Hong Yi-Rong | 9 |
#10 | Rao Jin-Gang | 8 |
Publication | Filing date | Title |
---|---|---|
US2012322247A1 | Method for fabricating high voltage transistor | |
US2007051557A1 | Automobile exhaust pipe assembly | |
US2006034076A1 | Direct-light illuminating unit of LCD module having diffuser designated by surface function |