Assignee
CHEN CHIA YU
15 granted patents·16 pending applications·128 citations·filing 2006–2021
Top patents by PatentIndex Score
31 records- 0182US7677137B1Reversible ratchet mechanism for ratchet toolsCHEN CHIA-YU·Filed 2009·Granted Mar 16, 2010·15 cites·2 claims
- 0277USD663177SRatchet wrenchCHEN CHIA-YU·Filed 2012·Granted Jul 10, 2012·21 cites·1 claims
- 0376US9573253B1Ratchet wrench structureCHEN CHIA-YU·Filed 2015·Granted Feb 21, 2017·2 cites·4 claims
- 0476USD564853STool handleCHEN CHIA YU·Filed 2007·Granted Mar 25, 2008·21 cites·1 claims
- 0575USD572548STool handleCHEN CHIA YU·Filed 2007·Granted Jul 8, 2008·20 cites·1 claims
- 0672USD576457SBody of the wrenchCHEN CHIA-YU·Filed 2008·Granted Sep 9, 2008·18 cites·1 claims
- 0770US9010220B2Pass-thru ratchet wrenchCHEN CHIA-YU·Filed 2014·Granted Apr 21, 2015·3 cites·3 claims
- 0867US10252403B2Wrench adjustable in head angleCHEN CHIA YU·Filed 2016·Granted Apr 9, 2019·1 cites·5 claims
- 0967US9102051B2Retractable rod structure of hand toolCHEN CHIA-YU·Filed 2013·Granted Aug 11, 2015·3 cites·8 claims
- 1063US9193050B2Oil core replacing deviceCHEN CHIA-YU·Filed 2013·Granted Nov 24, 2015·2 cites·6 claims
- 1162USD773265SRatchet wrenchCHEN CHIA-YU·Filed 2015·Granted Dec 6, 2016·9 cites·1 claims
- 1256US2008155785A1Telescopic hand toolCHEN CHIA YU·Filed 2006·Application pending·0 cites
- 1355USD686472SRatchet wrench handleCHEN CHIA-YU·Filed 2012·Granted Jul 23, 2013·8 cites·1 claims
- 1454US2007186730A1Extensible handle for a hand toolCHEN CHIA-YU·Filed 2006·Application pending·0 cites
- 1552US2022250212A1Resisting structure of ratchet wrenchCHEN CHIA YU·Filed 2021·Application pending·0 cites
- 1652US2009293683A1Ratchet driverCHEN CHIA-YU·Filed 2008·Application pending·0 cites
- 1751US2016167203A1Ratchet wrench able to enhance positioning effect of ratchetCHEN CHIA-YU·Filed 2014·Application pending·0 cites
- 1850US2015239105A1Ratchet wrench with replaceable tool headCHEN CHIA-YU·Filed 2014·Application pending·0 cites
- 1949USD1000922SSwitch knob for ratchet wrenchCHEN CHIA YU·Filed 2021·Granted Oct 10, 2023·1 cites·1 claims
- 2049US2015128767A1Penetration-type ratchet wrenchCHEN CHIA-YU·Filed 2013·Application pending·0 cites
- 2149US2007173381A1Magnetic-loaded exercise bicycleCHEN CHIA-YU·Filed 2006·Application pending·0 cites
- 2249US2011036393A1Thin-Film Solar Cell Module and a Manufacturing Method ThereofCHEN CHIA-YU·Filed 2010·Application pending·0 cites
- 2348US2018339403A1Ratchet wrenchCHEN CHIA YU·Filed 2017·Application pending·0 cites
- 2447USD775912SSwitch knob for ratchet wrenchCHEN CHIA-YU·Filed 2015·Granted Jan 10, 2017·4 cites·1 claims
- 2547US2013233132A1Combination structure of head part and grip cover of ratchet wrenchCHEN CHIA-YU·Filed 2012·Application pending·0 cites
- 2647US2018229349A1High Torque Ratchet WrenchCHEN CHIA YU·Filed 2017·Application pending·0 cites
- 2747US2018264632A1Reversing ratchet wrenchCHEN CHIA YU·Filed 2017·Application pending·0 cites
- 2846US8342060B2Multi-function socket wrenchCHEN CHIA-YU·Filed 2011·Granted Jan 1, 2013·0 cites·5 claims
- 2944US2017080550A1One-way ratchet tool setCHEN CHIA-YU·Filed 2015·Application pending·0 cites
- 3043US2016375561A1Ratchet wrench able to automatically adjust engaging tooth number according to extent of torsionCHEN CHIA-YU·Filed 2015·Application pending·0 cites
- 3142US2008156151A1Stepless telescopic hand toolCHEN CHIA YU·Filed 2006·Application pending·0 cites
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