Assignee
CHANG CHI-TSAI
21 granted patents·15 pending applications·319 citations·filing 2002–2014
Top patents by PatentIndex Score
36 records- 0198US8668512B2Safety socketCHANG CHI-TSAI·Filed 2012·Granted Mar 11, 2014·69 cites·13 claims
- 0292US8714995B2Safety socketCHANG CHI-TSAI·Filed 2012·Granted May 6, 2014·25 cites·12 claims
- 0392US8336710B2Safety drill bit suspension structureCHANG CHI-TSAI·Filed 2011·Granted Dec 25, 2012·18 cites·7 claims
- 0492US7641087B2Dispensing device for adhesive tapeCHANG CHI-TSAI·Filed 2006·Granted Jan 5, 2010·15 cites·4 claims
- 0590US8381920B2Collapse structure of tool hanger boardCHANG CHI-TSAI·Filed 2010·Granted Feb 26, 2013·15 cites·4 claims
- 0687US8602280B2Adhesive tape dispenserCHANG CHI-TSAI·Filed 2012·Granted Dec 10, 2013·9 cites·6 claims
- 0787US7104818B1Receptacle structureCHANG CHI-TSAI·Filed 2005·Granted Sep 12, 2006·28 cites·9 claims
- 0886US8840417B2Safety socketCHANG CHI-TSAI·Filed 2012·Granted Sep 23, 2014·15 cites·10 claims
- 0983US8951059B2Safety receptacle for power cordCHANG CHI-TSAI·Filed 2013·Granted Feb 10, 2015·13 cites·9 claims
- 1080US8302772B2Secure hanging structure of tool caseCHANG CHI-TSAI·Filed 2011·Granted Nov 6, 2012·6 cites·7 claims
- 1177US8784126B2Locking socketCHANG CHI-TSAI·Filed 2012·Granted Jul 22, 2014·9 cites·11 claims
- 1277US7392902B2Suspension device which prevents a suspended tool from burglaryCHANG CHI-TSAI·Filed 2006·Granted Jul 1, 2008·15 cites·2 claims
- 1377US7175151B2Hand tool suspension deviceCHANG CHI-TSAI·Filed 2005·Granted Feb 13, 2007·15 cites·4 claims
- 1476US7565973B2Suspension tag for socket wrenchCHANG CHI-TSAI·Filed 2007·Granted Jul 28, 2009·14 cites·5 claims
- 1575USD592249STape dispenserCHANG CHI-TSAI·Filed 2008·Granted May 12, 2009·20 cites·1 claims
- 1669US8857777B2Anti-theft/safety hangerCHANG CHI-TSAI·Filed 2012·Granted Oct 14, 2014·5 cites·2 claims
- 1769US8281925B2Safety spanner suspension structureCHANG CHI-TSAI·Filed 2011·Granted Oct 9, 2012·5 cites·13 claims
- 1868US8960453B2Hanging device for a pincerCHANG CHI-TSAI·Filed 2013·Granted Feb 24, 2015·4 cites·5 claims
- 1967US8408265B2Tape dispenserCHANG CHI-TSAI·Filed 2011·Granted Apr 2, 2013·2 cites·13 claims
- 2063US8968015B2Safety socketCHANG CHI-TSAI·Filed 2013·Granted Mar 3, 2015·4 cites·5 claims
- 2162US7083458B1Structure of a socketCHANG CHI-TSAI·Filed 2002·Granted Aug 1, 2006·13 cites·1 claims
- 2255US2014208623A1Detachable member for a hangerCHANG CHI-TSAI·Filed 2013·Application pending·0 cites
- 2355US2007267307A1Suspension device for hand tools having ring portionCHANG CHI-TSAI·Filed 2006·Application pending·0 cites
- 2451US2014298694A1Detachable member for a hangerCHANG CHI-TSAI·Filed 2014·Application pending·0 cites
- 2549US2010252600A1Adhesive tape dispensing deviceCHANG CHI-TSAI·Filed 2009·Application pending·0 cites
- 2649US2011005688A1Structure of cutting opening of adhesive tape dispenserCHANG CHI-TSAI·Filed 2009·Application pending·0 cites
- 2749US2011005687A1Wavy-embankment type contamination-free adhesive tape dispenserCHANG CHI-TSAI·Filed 2009·Application pending·0 cites
- 2848US2008058021A1Panel of a handphoneCHANG CHI-TSAI·Filed 2006·Application pending·0 cites
- 2948US2013001178A1Tool display rack with pivotable plateCHANG CHI-TSAI·Filed 2012·Application pending·0 cites
- 3048US2012234709A1Drill bit suspension structureCHANG CHI-TSAI·Filed 2011·Application pending·0 cites
- 3147US2009230163A1Adhesive tape dispenserCHANG CHI-TSAI·Filed 2008·Application pending·0 cites
- 3247US2012091074A1Secure tool hanger structureCHANG CHI-TSAI·Filed 2010·Application pending·0 cites
- 3346US2006280824A1Glass repairerCHANG CHI-TSAI·Filed 2005·Application pending·0 cites
- 3446US2012061339A1Concatenate safety tool suspension structureCHANG CHI-TSAI·Filed 2011·Application pending·0 cites
- 3541US2010301087A1Interposition anti-contamination tape dispenserCHANG CHI-TSAI·Filed 2010·Application pending·0 cites
- 3638US2010181028A1Integrally-formed contamination-resistant adhesive tape dispenserCHANG CHI-TSAI·Filed 2010·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →