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CHANG CHAO-HUNG

Overview
  • Total Patents
    15
About

CHANG CHAO-HUNG has a total of 15 patent applications. Its first patent ever was published in 2003. It filed its patents most often in EPO (European Patent Office), United States and Argentina. Its main competitors in its focus markets audio-visual technology, control and optics are CHENGDU GUORONG TECHNOLOGY CO LTD, CHEKT LLC and KOREA CCS CO LTD.

Patent filings in countries

World map showing CHANG CHAO-HUNGs patent filings in countries

Patent filings per year

Chart showing CHANG CHAO-HUNGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chang Chao-Hung 15
#2 Hsu Yen-Tseng 1
#3 Lin Yu-Tung 1
#4 Yeh Jerome 1
#5 Chang Tain-Tzu 1
#6 Chang Chow-Ing 1
#7 Yeh Po-Lin 1

Latest patents

Publication Filing date Title
US2008180520A1 System and method for variable-resolution image saving
EP1677268A1 Integrated active surveillance system
US2006028547A1 Integrated active surveillance system
EP1619880A1 Improved mechanism for rotatable image-taking device
US2006012900A1 Mechanism for rotatable image-taking device
EP1617670A1 Partial image saving system and method
US2006007307A1 Partial image saving system and method
EP1542186A1 Active searching and identifying system and method
MY133627A Video surveillance system and method
BR0302746A Surveillance system and method using active video
KR20050006420A Active Video Surveillance system and Active Video Surveillance Method thereof
CA2434700A1 Active video surveillance system and active video surveillance method therefore
EP1467332A1 Video surveillance system and method