Assignee
YIH CHENG FACTORY CO LTD
TW·29 granted patents·13 pending applications·291 citations·filing 2005–2024
Top patents by PatentIndex Score
42 records- 0197US7931143B1ToolboxYIH CHENG FACTORY CO LTD·Filed 2010·Granted Apr 26, 2011·54 cites·12 claims
- 0295US11597073B2Hand tool with insulation handleYIH CHENG FACTORY CO LTD·Filed 2021·Granted Mar 7, 2023·3 cites·16 claims
- 0394US9808917B1Ratchet wrench capable of rotating quickly and driving rotationYIH CHENG FACTORY CO LTD·Filed 2016·Granted Nov 7, 2017·12 cites·7 claims
- 0489US7882769B2Insulating screwdriver having wear identification functionYIH CHENG FACTORY CO LTD·Filed 2008·Granted Feb 8, 2011·21 cites·19 claims
- 0589US7331455B2Tool box with pivoting seats for screwdriver tipsYIH CHENG FACTORY CO LTD·Filed 2005·Granted Feb 19, 2008·26 cites·16 claims
- 0688USD609073SChuckYIH CHENG FACTORY CO LTD·Filed 2009·Granted Feb 2, 2010·36 cites·1 claims
- 0787US7661526B2Toolbox with pivoted coverYIH CHENG FACTORY CO LTD·Filed 2008·Granted Feb 16, 2010·22 cites·7 claims
- 0887US7174810B1Selective one-way toolYIH CHENG FACTORY CO LTD·Filed 2006·Granted Feb 13, 2007·20 cites·10 claims
- 0985US11850709B2Toolbox handle of combination screwdriverYIH CHENG FACTORY CO LTD·Filed 2022·Granted Dec 26, 2023·1 cites·15 claims
- 1084USD607300STool handleYIH CHENG FACTORY CO LTD·Filed 2008·Granted Jan 5, 2010·30 cites·1 claims
- 1182US10717174B2Ratchet wrench capable of rotating quickly and driving rotationYIH CHENG FACTORY CO LTD·Filed 2017·Granted Jul 21, 2020·3 cites·4 claims
- 1271US10131038B2Ratchet wrench having flexible positioning structureYIH CHENG FACTORY CO LTD·Filed 2016·Granted Nov 20, 2018·2 cites·10 claims
- 1371USD554967STool handleYIH CHENG FACTORY CO LTD·Filed 2006·Granted Nov 13, 2007·18 cites·1 claims
- 1467USD574208STool handleYIH CHENG FACTORY CO LTD·Filed 2007·Granted Aug 5, 2008·15 cites·1 claims
- 1566US12263561B2Ratchet wrenchYIH CHENG FACTORY CO LTD·Filed 2022·Granted Apr 1, 2025·0 cites·9 claims
- 1666US10245712B2Ratchet wrench having quick release structureYIH CHENG FACTORY CO LTD·Filed 2016·Granted Apr 2, 2019·1 cites·14 claims
- 1766US2026084270A1Ratchet wrench assembly structureYIH CHENG FACTORY CO LTD·Filed 2024·Application pending·0 cites
- 1864USD775925SHandle for hand toolsYIH CHENG FACTORY CO LTD·Filed 2015·Granted Jan 10, 2017·10 cites·1 claims
- 1964US9533401B2Ratchet driving mechanism for hand toolYIH CHENG FACTORY CO LTD·Filed 2014·Granted Jan 3, 2017·2 cites·9 claims
- 2062US12208504B2Hand tool with rotary handleYIH CHENG FACTORY CO LTD·Filed 2022·Granted Jan 28, 2025·0 cites·10 claims
- 2162US2025242480A1Screwdriver bit coupling structure of hand toolYIH CHENG FACTORY CO LTD·Filed 2024·Application pending·0 cites
- 2261US2025121486A1Toolbox handle structure of combination screwdriverYIH CHENG FACTORY CO LTD·Filed 2023·Application pending·0 cites
- 2359US12017330B2Ratchet screwdriver structureYIH CHENG FACTORY CO LTD·Filed 2021·Granted Jun 25, 2024·0 cites·9 claims
- 2459US9358671B2Hand tool with latch structureYIH CHENG FACTORY CO LTD·Filed 2014·Granted Jun 7, 2016·1 cites·8 claims
- 2558US11999046B2Combined screwdriver with storage structureYIH CHENG FACTORY CO LTD·Filed 2021·Granted Jun 4, 2024·0 cites·5 claims
- 2656US11969872B2Multifunctional hand toolYIH CHENG FACTORY CO LTD·Filed 2020·Granted Apr 30, 2024·0 cites·8 claims
- 2754US2007214607A1Bendable handleYIH CHENG FACTORY CO LTD·Filed 2006·Application pending·0 cites
- 2853USD775924SHandle for hand toolsYIH CHENG FACTORY CO LTD·Filed 2015·Granted Jan 10, 2017·6 cites·1 claims
- 2953US2020039051A1Hand tool for improving torqueYIH CHENG FACTORY CO LTD·Filed 2018·Application pending·0 cites
- 3050US2025010437A1Hand tool with rotary handleYIH CHENG FACTORY CO LTD·Filed 2023·Application pending·0 cites
- 3150US2021339364A1Torque screwdriverYIH CHENG FACTORY CO LTD·Filed 2020·Application pending·0 cites
- 3249US2008087142A1Screwdriver having quick release tool shank background of the inventionYIH CHENG FACTORY CO LTD·Filed 2006·Application pending·0 cites
- 3348USD1113391SHand toolYIH CHENG FACTORY CO LTD·Filed 2024·Granted Feb 17, 2026·0 cites·1 claims
- 3446USD676655SToolboxYIH CHENG FACTORY CO LTD·Filed 2012·Granted Feb 26, 2013·5 cites·1 claims
- 3546US2017361450A1Quickly rotary and expandable ratchet wrenchYIH CHENG FACTORY CO LTD·Filed 2016·Application pending·0 cites
- 3644US2017173765A1Combinative connectorYIH CHENG FACTORY CO LTD·Filed 2015·Application pending·0 cites
- 3743USD765481SImpact toolYIH CHENG FACTORY CO LTD·Filed 2015·Granted Sep 6, 2016·3 cites·1 claims
- 3842US2017361434A1Ratchet wrench having positioning mechanismYIH CHENG FACTORY CO LTD·Filed 2016·Application pending·0 cites
- 3942US2017361433A1Ratchet wrench with positioning structureYIH CHENG FACTORY CO LTD·Filed 2016·Application pending·0 cites
- 4041USD1096352SHandle of hand toolYIH CHENG FACTORY CO LTD·Filed 2024·Granted Oct 7, 2025·0 cites·1 claims
- 4141US2017173780A1Multi-functional toolboxYIH CHENG FACTORY CO LTD·Filed 2015·Application pending·0 cites
- 4233US10913143B2Handgrip structure of hand toolYIH CHENG FACTORY CO LTD·Filed 2018·Granted Feb 9, 2021·0 cites·7 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →