Inventor · disambiguated record
Chiung-Chang Tsai
Also filed as: TSAI CHIUNG C · TSAI CHIUNG-CHANG
18 granted patents·4 pending applications·279 citations·filing 1990–2023
95Inventor score
Top patents by PatentIndex Score
22 records- 0195USD441269SHandle for a hand toolFiled 2000·Granted May 1, 2001·70 cites·1 claims
- 0293US9478901B2Electronic product and its cable setQUANTA COMP INC·Filed 2015·Granted Oct 25, 2016·19 cites·20 claims
- 0385US9577324B2Wearable electronic deviceQUANTA COMP INC·Filed 2015·Granted Feb 21, 2017·6 cites·12 claims
- 0483USD408258STool handleTSAI CHIUNG CHANG·Filed 1998·Granted Apr 20, 1999·26 cites·1 claims
- 0581USD533428SHand tool handleTSAI CHIUNG-CHANG·Filed 2004·Granted Dec 12, 2006·26 cites·1 claims
- 0680US9278435B2Ratchet screwdriverTSAI CHIUNG-CHANG·Filed 2013·Granted Mar 8, 2016·7 cites·3 claims
- 0780USD531480SHandle for a hand toolTSAI CHIUNG-CHANG·Filed 2006·Granted Nov 7, 2006·27 cites·1 claims
- 0878US8020473B2Handle of a hand tool having grinding capabilitiesTSAI CHIUNG-CHANG·Filed 2009·Granted Sep 20, 2011·7 cites·11 claims
- 0978USD531006SHandle for a hand toolTSAI CHIUNG-CHANG·Filed 2006·Granted Oct 31, 2006·24 cites·1 claims
- 1077US10545013B2Measuring tape assemblyTSAI CHIUNG CHANG·Filed 2018·Granted Jan 28, 2020·2 cites·8 claims
- 1177US8051747B1One-way ratchet wrenchTSAI CHIUNG-CHANG·Filed 2009·Granted Nov 8, 2011·12 cites·3 claims
- 1269US10384334B2Ratchet screwdriverTSAI CHIUNG CHANG·Filed 2017·Granted Aug 20, 2019·1 cites·11 claims
- 1368US10766125B2Ratchet screwdriverTSAI CHIUNG CHANG·Filed 2017·Granted Sep 8, 2020·1 cites·10 claims
- 1464US6405396B1Screwdriver assembly with an extendable rodFiled 2001·Granted Jun 18, 2002·12 cites·1 claims
- 1558USD531878SHandle for a hand toolTSAI CHIUNG-CHANG·Filed 2006·Granted Nov 14, 2006·11 cites·1 claims
- 1658US2024424649A1Hand Tool StructureTSAI CHANG YU·Filed 2023·Application pending·0 cites
- 1755USD465986SHandle of hand toolFiled 2002·Granted Nov 26, 2002·9 cites·1 claims
- 1849US2015290777A1Work tool having function part with friction faceTSAI CHIUNG-CHANG·Filed 2014·Application pending·0 cites
- 1947USD486381STool suspension plateFiled 2002·Granted Feb 10, 2004·6 cites·1 claims
- 2045US4987998ARetention device for collecting sockets and wrenchesTSAI CHIUNG C·Filed 1990·Granted Jan 29, 1991·13 cites·2 claims
- 2140US2002170394A1Screwdriver assemblyFiled 2001·Application pending·0 cites
- 2233US2017180850A1Waterproof electronic device with pressure-equilibrium functionsQUANTA COMP INC·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →