Inventor · disambiguated record
Tsai-Ching Chen
Also filed as: CHEN TSAI-CHING
30 granted patents·11 pending applications·835 citations·filing 1997–2021
97Inventor score
Top patents by PatentIndex Score
41 records- 0196US6637755B2Chuck device for miniature tool bitsCHEN TSAI-CHING·Filed 2002·Granted Oct 28, 2003·114 cites·13 claims
- 0296US6325393B1Chuck device for toolsFiled 2000·Granted Dec 4, 2001·138 cites·20 claims
- 0395US6270085B1Chuck device for tool bitsFiled 1999·Granted Aug 7, 2001·145 cites·4 claims
- 0493US7823890B2ChuckCHEN TSAI-CHING·Filed 2006·Granted Nov 2, 2010·30 cites·10 claims
- 0592US6860489B2Chuck deviceFiled 2003·Granted Mar 1, 2005·46 cites·6 claims
- 0690US7168559B2ToolboxCHEN TSAI-CHING·Filed 2004·Granted Jan 30, 2007·44 cites·20 claims
- 0789US6644150B2Tool bit holding device with an improved retaining effectFiled 2002·Granted Nov 11, 2003·38 cites·19 claims
- 0888US9381627B2Tool bit adapter having a position-limit rodGOOD YEAR HARDWARE CO LTD·Filed 2014·Granted Jul 5, 2016·9 cites·6 claims
- 0981USD702438STool boxGOOD YEAR HARDWARE CO LTD·Filed 2012·Granted Apr 15, 2014·26 cites·1 claims
- 1079US8397912B1Rotary toolboxGOOD YEAR HARDWARE CO LTD·Filed 2012·Granted Mar 19, 2013·10 cites·12 claims
- 1179USD661569SHandlebar grip for hand toolCHEN TSAI-CHING·Filed 2011·Granted Jun 12, 2012·24 cites·1 claims
- 1279US7950311B2Screwdriver kitCHEN TSAI-CHING·Filed 2008·Granted May 31, 2011·9 cites·17 claims
- 1379US6134788ATool holderFiled 1999·Granted Oct 24, 2000·64 cites·19 claims
- 1479USD422870SHandle of toolCHEN TSAI-CHING·Filed 1999·Granted Apr 18, 2000·22 cites·1 claims
- 1577US9827664B1Push-button tool box with swing seatGOOD YEAR HARDWARE CO LTD·Filed 2016·Granted Nov 28, 2017·5 cites·10 claims
- 1673US8342062B2Multi-angle hand toolCHEN TSAI-CHING·Filed 2010·Granted Jan 1, 2013·7 cites·15 claims
- 1773US6206160B1Ratchet transmission control mechanism for a ratcheting toolFiled 1999·Granted Mar 27, 2001·24 cites·8 claims
- 1868USD579204SToolboxCHEN TSAI-CHING·Filed 2008·Granted Oct 28, 2008·15 cites·1 claims
- 1967USD479253SChuckFiled 2002·Granted Sep 2, 2003·14 cites·1 claims
- 2066US6942095B2ToolboxFiled 2003·Granted Sep 13, 2005·13 cites·15 claims
- 2154US2007272572A1ToolboxCHEN TSAI-CHING·Filed 2006·Application pending·0 cites
- 2254US2006207903A1ToolboxCHEN TSAI-CHING·Filed 2006·Application pending·0 cites
- 2352USD691371SToolboxGOOD YEAR HARDWARE CO LTD·Filed 2012·Granted Oct 15, 2013·7 cites·1 claims
- 2452USD537253SToolboxCHEN TSAI-CHING·Filed 2005·Granted Feb 27, 2007·8 cites·1 claims
- 2551USD601399SScrewdriverCHEN TSAI-CHING·Filed 2008·Granted Oct 6, 2009·7 cites·1 claims
- 2650USD982408SChuck for tool bitsGOOD YEAR HARDWARE CO LTD·Filed 2021·Granted Apr 4, 2023·1 cites·1 claims
- 2750US2008179841A1Extension chuck toolCHEN TSAI-CHING·Filed 2007·Application pending·0 cites
- 2849US2018354105A1Tool bit adapter having a magnetic attraction effectGOOD YEAR HARDWARE CO LTD·Filed 2018·Application pending·0 cites
- 2947US2012211384A1ToolboxCHEN TSAI-CHING·Filed 2011·Application pending·0 cites
- 3047US2015202751A1Tool bit adapterGOOD YEAR HARDWARE CO LTD·Filed 2014·Application pending·0 cites
- 3147US2012272795A1Hand ToolCHEN TSAI-CHING·Filed 2012·Application pending·0 cites
- 3246USD410145STool boxCHEN TSAI-CHING·Filed 1997·Granted May 25, 1999·5 cites·1 claims
- 3346US2003226779A1Self-opening tool boxFiled 2002·Application pending·0 cites
- 3443US2011017029A1Hand ToolCHEN TSAI-CHING·Filed 2010·Application pending·0 cites
- 3543US2004026878A1Chuck device for miniature tool bitsFiled 2003·Application pending·0 cites
- 3642USD555354STool holderCHEN TSAI-CHING·Filed 2007·Granted Nov 20, 2007·4 cites·1 claims
- 3741US8826781B2Screwdriver having a removable rod memberCHEN TSAI-CHING·Filed 2012·Granted Sep 9, 2014·0 cites·11 claims
- 3840USD846278STool boxGOOD YEAR HARDWARE CO LTD·Filed 2016·Granted Apr 23, 2019·2 cites·1 claims
- 3939US2004104545A1Connection of tool with tool bitFiled 2002·Application pending·0 cites
- 4037USD715547SToolboxGOOD YEAR HARDWARE CO LTD·Filed 2012·Granted Oct 21, 2014·2 cites·1 claims
- 4136USD571552SToolboxCHEN TSAI-CHING·Filed 2007·Granted Jun 24, 2008·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →