Assignee
CHEN TSAI-CHING
14 granted patents·6 pending applications·291 citations·filing 1997–2012
Top patents by PatentIndex Score
20 records- 0196US6637755B2Chuck device for miniature tool bitsCHEN TSAI-CHING·Filed 2002·Granted Oct 28, 2003·114 cites·13 claims
- 0293US7823890B2ChuckCHEN TSAI-CHING·Filed 2006·Granted Nov 2, 2010·30 cites·10 claims
- 0390US7168559B2ToolboxCHEN TSAI-CHING·Filed 2004·Granted Jan 30, 2007·44 cites·20 claims
- 0479USD661569SHandlebar grip for hand toolCHEN TSAI-CHING·Filed 2011·Granted Jun 12, 2012·24 cites·1 claims
- 0579US7950311B2Screwdriver kitCHEN TSAI-CHING·Filed 2008·Granted May 31, 2011·9 cites·17 claims
- 0679USD422870SHandle of toolCHEN TSAI-CHING·Filed 1999·Granted Apr 18, 2000·22 cites·1 claims
- 0773US8342062B2Multi-angle hand toolCHEN TSAI-CHING·Filed 2010·Granted Jan 1, 2013·7 cites·15 claims
- 0868USD579204SToolboxCHEN TSAI-CHING·Filed 2008·Granted Oct 28, 2008·15 cites·1 claims
- 0954US2007272572A1ToolboxCHEN TSAI-CHING·Filed 2006·Application pending·0 cites
- 1054US2006207903A1ToolboxCHEN TSAI-CHING·Filed 2006·Application pending·0 cites
- 1152USD537253SToolboxCHEN TSAI-CHING·Filed 2005·Granted Feb 27, 2007·8 cites·1 claims
- 1251USD601399SScrewdriverCHEN TSAI-CHING·Filed 2008·Granted Oct 6, 2009·7 cites·1 claims
- 1350US2008179841A1Extension chuck toolCHEN TSAI-CHING·Filed 2007·Application pending·0 cites
- 1447US2012211384A1ToolboxCHEN TSAI-CHING·Filed 2011·Application pending·0 cites
- 1547US2012272795A1Hand ToolCHEN TSAI-CHING·Filed 2012·Application pending·0 cites
- 1646USD410145STool boxCHEN TSAI-CHING·Filed 1997·Granted May 25, 1999·5 cites·1 claims
- 1743US2011017029A1Hand ToolCHEN TSAI-CHING·Filed 2010·Application pending·0 cites
- 1842USD555354STool holderCHEN TSAI-CHING·Filed 2007·Granted Nov 20, 2007·4 cites·1 claims
- 1941US8826781B2Screwdriver having a removable rod memberCHEN TSAI-CHING·Filed 2012·Granted Sep 9, 2014·0 cites·11 claims
- 2036USD571552SToolboxCHEN TSAI-CHING·Filed 2007·Granted Jun 24, 2008·2 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →