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CHANG CHUN YUAN

Overview
  • Total Patents
    22
  • GoodIP Patent Rank
    221,105
About

CHANG CHUN YUAN has a total of 22 patent applications. Its first patent ever was published in 1997. It filed its patents most often in United States, EPO (European Patent Office) and United Kingdom. Its main competitors in its focus markets machine tools, consumer goods and machines are VOGEL A G M, LEITZ LOUIS KG and ACCO USA INC.

Patent filings in countries

World map showing CHANG CHUN YUANs patent filings in countries

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 21
#2 Chang Chun-Yuan 1

Latest patents

Publication Filing date Title
US2015258840A1 Positioning structure for a clipboard
US2015239143A1 Punching machine
US2014318343A1 Punching Machine
US2014238211A1 Paper cutting machine
US2013164073A1 Movable buckle device of a file box
US2013129404A1 Two-way moving structure of a file folder
US2012301211A1 Two-way moving structure of a paper folder
US2012298827A1 Angle adjusting stand
US2012292312A1 Positioning structure for a clipboard
US2012080581A1 Rotary reading stand
US2012024931A1 Saddle stapler
US2011155617A1 Document box
US2009065548A1 Stapling device
US2008308598A1 Stapling device
US2009060629A1 Portable and hangable document file folder
US2008266835A1 Folder with detachable illumination device
HK1082156A1 Trigger type stapler structure
EP1829648A1 Stapling device
US2006108392A1 Stapling device having rear housing opening
US7014090B1 Stapling device