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CHANG CHUN-YUAN

Overview
  • Total Patents
    17
About

CHANG CHUN-YUAN has a total of 17 patent applications. Its first patent ever was published in 2003. It filed its patents most often in United States. Its main competitors in its focus markets machines, machine tools and surface technology and coating are MITSUBISHI KAGAKU FORM PLASTIC, SCHREINER LUCHTVAART and KIHLBERG HARRY.

Patent filings in countries

World map showing CHANG CHUN-YUANs patent filings in countries
# Country Total Patents
#1 United States 17

Patent filings per year

Chart showing CHANG CHUN-YUANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chang Chun-Yuan 17
#2 Tseng Chung-Chi 2
#3 Liu Li-Fu 1
#4 Shih Yu-Tang 1
#5 Hung Tzu-Hsiu 1

Latest patents

Publication Filing date Title
US2012236474A1 Electronic apparatus carrying device
US2010255273A1 Plastic article and method of manufacturing the same
US7758009B1 Full folding/unfolding book stand and copy holder
US2010253939A1 Industrial Laparoscope
US2010078400A1 Quick-assembly laminating file tray
US2009218382A1 Sheathing device for the staple channel of stapler
US2009184151A1 Dual protective device of a heavy-duty stapler
US2009049967A1 Hole punch structure
US2008061106A1 Stapler having a force balance effect
US2007241579A1 File carrying device
US2007187450A1 Pliers type stapler
US2007187451A1 Pliers type stapler
US2007101848A1 Corner trimming device
US6973809B2 Number lock device for computer