Assignee
TSAI CHIUNG-CHANG
TW·11 granted patents·1 pending application·144 citations·filing 1998–2018
Top patents by PatentIndex Score
12 records- 0183USD408258STool handleTSAI CHIUNG CHANG·Filed 1998·Granted Apr 20, 1999·26 cites·1 claims
- 0281USD533428SHand tool handleTSAI CHIUNG-CHANG·Filed 2004·Granted Dec 12, 2006·26 cites·1 claims
- 0380US9278435B2Ratchet screwdriverTSAI CHIUNG-CHANG·Filed 2013·Granted Mar 8, 2016·7 cites·3 claims
- 0480USD531480SHandle for a hand toolTSAI CHIUNG-CHANG·Filed 2006·Granted Nov 7, 2006·27 cites·1 claims
- 0578US8020473B2Handle of a hand tool having grinding capabilitiesTSAI CHIUNG-CHANG·Filed 2009·Granted Sep 20, 2011·7 cites·11 claims
- 0678USD531006SHandle for a hand toolTSAI CHIUNG-CHANG·Filed 2006·Granted Oct 31, 2006·24 cites·1 claims
- 0777US10545013B2Measuring tape assemblyTSAI CHIUNG CHANG·Filed 2018·Granted Jan 28, 2020·2 cites·8 claims
- 0877US8051747B1One-way ratchet wrenchTSAI CHIUNG-CHANG·Filed 2009·Granted Nov 8, 2011·12 cites·3 claims
- 0969US10384334B2Ratchet screwdriverTSAI CHIUNG CHANG·Filed 2017·Granted Aug 20, 2019·1 cites·11 claims
- 1068US10766125B2Ratchet screwdriverTSAI CHIUNG CHANG·Filed 2017·Granted Sep 8, 2020·1 cites·10 claims
- 1158USD531878SHandle for a hand toolTSAI CHIUNG-CHANG·Filed 2006·Granted Nov 14, 2006·11 cites·1 claims
- 1249US2015290777A1Work tool having function part with friction faceTSAI CHIUNG-CHANG·Filed 2014·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →