Assignee
CHANG CHIH-MIN
TW·35 granted patents·14 pending applications·245 citations·filing 2004–2024
Top patents by PatentIndex Score
49 records- 0192US7743685B2Ratchet wrenchCHANG CHIH-MIN·Filed 2007·Granted Jun 29, 2010·32 cites·4 claims
- 0288US8230766B2Wrench for different-sized nutsCHANG CHIH-MIN·Filed 2010·Granted Jul 31, 2012·12 cites·10 claims
- 0383US8631723B2Ratchet wrench being conveniently assembledCHANG CHIH-MIN·Filed 2011·Granted Jan 21, 2014·8 cites·4 claims
- 0482US9649751B2Reversible ratchet wrench with a smaller rotational angleCHANG CHIH-MIN·Filed 2014·Granted May 16, 2017·7 cites·14 claims
- 0579US9511485B2Wrench capable of adjusting operating angleCHANG CHIH-MIN·Filed 2014·Granted Dec 6, 2016·6 cites·3 claims
- 0679USD749384SRatch wheelCHANG CHIH-MIN·Filed 2014·Granted Feb 16, 2016·23 cites·1 claims
- 0772USD584932SWrenchCHANG CHIH-MIN·Filed 2007·Granted Jan 20, 2009·18 cites·1 claims
- 0871USD739695SRatch wheelCHANG CHIH-MIN·Filed 2014·Granted Sep 29, 2015·16 cites·1 claims
- 0971US8770066B2Water and dust resistant ratchet wrenchCHANG CHIH-MIN·Filed 2011·Granted Jul 8, 2014·4 cites·14 claims
- 1071US7146882B1Ratchet wrenchCHANG CHIH-MIN·Filed 2005·Granted Dec 12, 2006·8 cites·5 claims
- 1170USD660666SRatchet wrenchCHANG CHIH-MIN·Filed 2011·Granted May 29, 2012·16 cites·1 claims
- 1269US9364943B2Quick rotatable wrenchCHANG CHIH-MIN·Filed 2013·Granted Jun 14, 2016·4 cites·6 claims
- 1366USD912484SSocket of wrenchCHANG CHIH MIN·Filed 2019·Granted Mar 9, 2021·9 cites·1 claims
- 1466US2024399474A1Machining tool for box-end wrench and method of machining box-end wrench by using the sameCHANG CHIH MIN·Filed 2023·Application pending·0 cites
- 1566US2026001200A1Swing structure of ratchet wrenchCHANG CHIH MIN·Filed 2024·Application pending·0 cites
- 1664US12246432B2Box capable of replacement of half box body thereofCHANG CHIH MIN·Filed 2023·Granted Mar 11, 2025·0 cites·10 claims
- 1764US9505105B2Rotatable handle for wrenchCHANG CHIH-MIN·Filed 2014·Granted Nov 29, 2016·2 cites·6 claims
- 1864USD743223SRatch wheelCHANG CHIH-MIN·Filed 2014·Granted Nov 17, 2015·12 cites·1 claims
- 1963US12569976B2Tool hangerCHANG CHIH MIN·Filed 2024·Granted Mar 10, 2026·0 cites·3 claims
- 2060US11260510B2Tool with label structureCHANG CHIH MIN·Filed 2020·Granted Mar 1, 2022·0 cites·4 claims
- 2160US9623549B2Rotary wrenchCHANG CHIH-MIN·Filed 2014·Granted Apr 18, 2017·1 cites·3 claims
- 2260USD713225SWrenchCHANG CHIH-MIN·Filed 2013·Granted Sep 16, 2014·10 cites·1 claims
- 2359USD648995SShearing pliersCHANG CHIH-MIN·Filed 2010·Granted Nov 22, 2011·10 cites·1 claims
- 2458US2011072940A1Wrench having detachable wrench headCHANG CHIH-MIN·Filed 2009·Application pending·0 cites
- 2557USD639625SFoldable wrenchCHANG CHIH-MIN·Filed 2010·Granted Jun 14, 2011·9 cites·1 claims
- 2655US11396087B2Easily assembled ratchet wrenchCHANG CHIH MIN·Filed 2019·Granted Jul 26, 2022·0 cites·3 claims
- 2755USD751363SSocket for a wrenchCHANG CHIH-MIN·Filed 2014·Granted Mar 15, 2016·8 cites·1 claims
- 2854US2020198106A1Wrench and wrench assembly capable of being rotated quicklyCHANG CHIH MIN·Filed 2019·Application pending·0 cites
- 2954US2016016305A1Flip-flop toolboxCHANG CHIH-MIN·Filed 2014·Application pending·0 cites
- 3053US11364599B2Two-way ratchet wrenchCHANG CHIH MIN·Filed 2019·Granted Jun 21, 2022·0 cites·4 claims
- 3153US2015158188A1Force-boosted shears capable of pulling nailCHANG CHIH-MIN·Filed 2013·Application pending·0 cites
- 3253US2010242685A1Ratchet wrench capable of preventing disengagement of nutCHANG CHIH-MIN·Filed 2009·Application pending·0 cites
- 3352USD661560SWrenchCHANG CHIH-MIN·Filed 2011·Granted Jun 12, 2012·7 cites·1 claims
- 3452US2013139656A1Ratchet wrench capable of preventing disengagement of nutCHANG CHIH-MIN·Filed 2013·Application pending·0 cites
- 3550US9205537B2Detachable ratchet wrenchCHANG CHIH-MIN·Filed 2013·Granted Dec 8, 2015·0 cites·9 claims
- 3650US2012210829A1Ratchet wrench capable of preventing disengagement of nutCHANG CHIH-MIN·Filed 2011·Application pending·0 cites
- 3748US8683893B2Ratchet wrenchCHANG CHIH-MIN·Filed 2011·Granted Apr 1, 2014·0 cites·8 claims
- 3848US2014020519A1Ratchet wrenchCHANG CHIH-MIN·Filed 2013·Application pending·0 cites
- 3946USD660109SRatchet wrenchCHANG CHIH-MIN·Filed 2011·Granted May 22, 2012·5 cites·1 claims
- 4046US2013314912A1Led light bulb with large-angle light emissionCHANG CHIH-MIN·Filed 2012·Application pending·0 cites
- 4145US2006090609A1Ratchet wrenchCHANG CHIH-MIN·Filed 2004·Application pending·0 cites
- 4244USD751362SWrenchCHANG CHIH-MIN·Filed 2014·Granted Mar 15, 2016·4 cites·1 claims
- 4344USD713227SWrenchCHANG CHIH-MIN·Filed 2013·Granted Sep 16, 2014·4 cites·1 claims
- 4444US2017368441A1Takedown structure for gameCHANG CHIH-MIN·Filed 2017·Application pending·0 cites
- 4543US2012017729A1Wrench with ergonomic twisted handleCHANG CHIH-MIN·Filed 2010·Application pending·0 cites
- 4641USD749387SOpen-end wrenchCHANG CHIH-MIN·Filed 2014·Granted Feb 16, 2016·3 cites·1 claims
- 4739USD567603SWrenchCHANG CHIH-MIN·Filed 2007·Granted Apr 29, 2008·3 cites·1 claims
- 4838USD776503SHandle for hand toolCHANG CHIH-MIN·Filed 2015·Granted Jan 17, 2017·2 cites·1 claims
- 4937USD713226SWrenchCHANG CHIH-MIN·Filed 2013·Granted Sep 16, 2014·2 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →