Inventor · disambiguated record
Chi-Tsai Chang
Also filed as: CHANG CHI-HSIUNG · CHANG CHI-TSAI
43 granted patents·20 pending applications·521 citations·filing 1997–2025
98Inventor score
Top patents by PatentIndex Score
63 records- 0198US8668512B2Safety socketCHANG CHI-TSAI·Filed 2012·Granted Mar 11, 2014·69 cites·13 claims
- 0296US11358271B2Socket storage deviceCHUN NIEN PLASTIC LTD·Filed 2020·Granted Jun 14, 2022·8 cites·11 claims
- 0395US11420320B2Socket holderCHUN NIEN PLASTIC LTD·Filed 2020·Granted Aug 23, 2022·7 cites·11 claims
- 0493US6193539B1Structure of a socket for ensuring secured retention of a plug connected to the socketFiled 1999·Granted Feb 27, 2001·67 cites·1 claims
- 0592US11850725B2Tool storing deviceCHUN NIEN PLASTIC LTD·Filed 2022·Granted Dec 26, 2023·4 cites·1 claims
- 0692US8714995B2Safety socketCHANG CHI-TSAI·Filed 2012·Granted May 6, 2014·25 cites·12 claims
- 0792US8336710B2Safety drill bit suspension structureCHANG CHI-TSAI·Filed 2011·Granted Dec 25, 2012·18 cites·7 claims
- 0892US7641087B2Dispensing device for adhesive tapeCHANG CHI-TSAI·Filed 2006·Granted Jan 5, 2010·15 cites·4 claims
- 0990US8381920B2Collapse structure of tool hanger boardCHANG CHI-TSAI·Filed 2010·Granted Feb 26, 2013·15 cites·4 claims
- 1089US12064862B2Socket holderCHUN NIEN PLASTIC LTD·Filed 2022·Granted Aug 20, 2024·2 cites·8 claims
- 1188US11813730B2Socket holderCHUN NIEN PLASTIC LTD·Filed 2022·Granted Nov 14, 2023·2 cites·9 claims
- 1287US8602280B2Adhesive tape dispenserCHANG CHI-TSAI·Filed 2012·Granted Dec 10, 2013·9 cites·6 claims
- 1387US7104818B1Receptacle structureCHANG CHI-TSAI·Filed 2005·Granted Sep 12, 2006·28 cites·9 claims
- 1486US9247832B2Anti-theft suspension device for socketCHUN NIEN PLASTIC LTD·Filed 2014·Granted Feb 2, 2016·16 cites·5 claims
- 1586US8840417B2Safety socketCHANG CHI-TSAI·Filed 2012·Granted Sep 23, 2014·15 cites·10 claims
- 1685US6672555B2Structure of a suspension device for displaying articlesFiled 2002·Granted Jan 6, 2004·41 cites·1 claims
- 1783US8951059B2Safety receptacle for power cordCHANG CHI-TSAI·Filed 2013·Granted Feb 10, 2015·13 cites·9 claims
- 1880US8302772B2Secure hanging structure of tool caseCHANG CHI-TSAI·Filed 2011·Granted Nov 6, 2012·6 cites·7 claims
- 1978US10279465B2Plier hangerCHUN NIEN PLASTIC LTD·Filed 2018·Granted May 7, 2019·4 cites·10 claims
- 2077US8784126B2Locking socketCHANG CHI-TSAI·Filed 2012·Granted Jul 22, 2014·9 cites·11 claims
- 2177US7392902B2Suspension device which prevents a suspended tool from burglaryCHANG CHI-TSAI·Filed 2006·Granted Jul 1, 2008·15 cites·2 claims
- 2277US7175151B2Hand tool suspension deviceCHANG CHI-TSAI·Filed 2005·Granted Feb 13, 2007·15 cites·4 claims
- 2376US7565973B2Suspension tag for socket wrenchCHANG CHI-TSAI·Filed 2007·Granted Jul 28, 2009·14 cites·5 claims
- 2475USD592249STape dispenserCHANG CHI-TSAI·Filed 2008·Granted May 12, 2009·20 cites·1 claims
- 2569US8857777B2Anti-theft/safety hangerCHANG CHI-TSAI·Filed 2012·Granted Oct 14, 2014·5 cites·2 claims
- 2669US8281925B2Safety spanner suspension structureCHANG CHI-TSAI·Filed 2011·Granted Oct 9, 2012·5 cites·13 claims
- 2769US2025339949A1Tool storage deviceCHUN NIEN PLASTIC LTD·Filed 2025·Application pending·0 cites
- 2868US8960453B2Hanging device for a pincerCHANG CHI-TSAI·Filed 2013·Granted Feb 24, 2015·4 cites·5 claims
- 2967US12427644B2Tool storage deviceCHUN NIEN PLASTIC LTD·Filed 2024·Granted Sep 30, 2025·0 cites·10 claims
- 3067US8408265B2Tape dispenserCHANG CHI-TSAI·Filed 2011·Granted Apr 2, 2013·2 cites·13 claims
- 3166US12409545B2Tool holder rail and tool holder including the sameCHUN NIEN PLASTIC LTD·Filed 2023·Granted Sep 9, 2025·0 cites·13 claims
- 3266USD714135STool holder for circular saw bladeCHUN NIEN PLASTIC LTD·Filed 2014·Granted Sep 30, 2014·13 cites·1 claims
- 3365US2025269514A1Tool storage deviceCHUN NIEN PLASTIC LTD·Filed 2025·Application pending·0 cites
- 3465US2025276432A1Socket holderCHUN NIEN PLASTIC LTD·Filed 2025·Application pending·0 cites
- 3563US11845626B2Tape dispenserCHUN NIEN PLASTIC LTD·Filed 2021·Granted Dec 19, 2023·0 cites·18 claims
- 3663US8968015B2Safety socketCHANG CHI-TSAI·Filed 2013·Granted Mar 3, 2015·4 cites·5 claims
- 3762US7083458B1Structure of a socketCHANG CHI-TSAI·Filed 2002·Granted Aug 1, 2006·13 cites·1 claims
- 3861US5984700ASafety receptacleFiled 1997·Granted Nov 16, 1999·20 cites·3 claims
- 3959US12122034B2Nameplate and tool hanging device including the sameCHUN NIEN PLASTIC LTD·Filed 2022·Granted Oct 22, 2024·0 cites·5 claims
- 4055US2014208623A1Detachable member for a hangerCHANG CHI-TSAI·Filed 2013·Application pending·0 cites
- 4155US2007267307A1Suspension device for hand tools having ring portionCHANG CHI-TSAI·Filed 2006·Application pending·0 cites
- 4253US10589913B2Pliers hangerCHUN NIEN PLASTIC LTD·Filed 2018·Granted Mar 17, 2020·0 cites·7 claims
- 4351US2014298694A1Detachable member for a hangerCHANG CHI-TSAI·Filed 2014·Application pending·0 cites
- 4450US6234824B1Structure of a socket for ensuring a secured retention of a plug connected to the socketFiled 2000·Granted May 22, 2001·5 cites·1 claims
- 4549US2010252600A1Adhesive tape dispensing deviceCHANG CHI-TSAI·Filed 2009·Application pending·0 cites
- 4649US2011005688A1Structure of cutting opening of adhesive tape dispenserCHANG CHI-TSAI·Filed 2009·Application pending·0 cites
- 4749US2011005687A1Wavy-embankment type contamination-free adhesive tape dispenserCHANG CHI-TSAI·Filed 2009·Application pending·0 cites
- 4848US2008058021A1Panel of a handphoneCHANG CHI-TSAI·Filed 2006·Application pending·0 cites
- 4948US2013001178A1Tool display rack with pivotable plateCHANG CHI-TSAI·Filed 2012·Application pending·0 cites
- 5048US2012234709A1Drill bit suspension structureCHANG CHI-TSAI·Filed 2011·Application pending·0 cites
Showing the top 50 of 63 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →