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CHEN CHIA-YU

Overview
  • Total Patents
    19
  • GoodIP Patent Rank
    179,631
About

CHEN CHIA-YU has a total of 19 patent applications. Its first patent ever was published in 2003. 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, mechanical elements and semiconductors are HANGZHOU TENGHUA AUTOMOTIVE TRANS CO LTD, MACDONALD JEFFREY DEAN and WILLIAM TOOLS CO LTD.

Patent filings in countries

World map showing CHEN CHIA-YUs patent filings in countries

Patent filings per year

Chart showing CHEN CHIA-YUs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chen Chia-Yu 19
#2 Bi Chien-Chung 1
#3 Lin Hui-Chu 1
#4 Cheng Kai-Mai 1

Latest patents

Publication Filing date Title
US9573253B1 Ratchet wrench structure
US2017080550A1 One-way ratchet tool set
US2016375561A1 Ratchet wrench able to automatically adjust engaging tooth number according to extent of torsion
JP2016120571A Ratchet wrench
EP3034237A1 Ratchet wrench able to enhance positioning effect of ratchet
US2016167203A1 Ratchet wrench able to enhance positioning effect of ratchet
US2015075332A1 Pass-thru ratchet wrench
US2015239105A1 Ratchet wrench with replaceable tool head
US2015128767A1 Penetration-type ratchet wrench
US2015020653A1 Retractable rod structure of hand tool
US2014360317A1 Oil core replacing device
US2013233132A1 Combination structure of head part and grip cover of ratchet wrench
US2012186401A1 Multi-function socket wrench
US7677137B1 Reversible ratchet mechanism for ratchet tools
US2009293683A1 Ratchet driver
US2007186730A1 Extensible handle for a hand tool
US2007173381A1 Magnetic-loaded exercise bicycle
GB0309382D0 Positioning structure of retractable handle