Assignee
KAI USA LTD
US·57 granted patents·2 pending applications·1,895 citations·filing 1997–2023
Top patents by PatentIndex Score
59 records- 0198US6591504B2Folding knife with safety lockKAI USA LTD·Filed 2001·Granted Jul 15, 2003·112 cites·13 claims
- 0298US6397476B1Opening and closing assisting mechanism for a folding knifeKAI USA LTD·Filed 2000·Granted Jun 4, 2002·123 cites·45 claims
- 0396US7979990B2Safety lock mechanism for folding knivesKAI USA LTD·Filed 2008·Granted Jul 19, 2011·54 cites·19 claims
- 0496USD488045SPocket knifeKAI USA LTD·Filed 2002·Granted Apr 6, 2004·80 cites·1 claims
- 0596US6378214B1Locking knife blade with moving locking mechanism on bladeKAI USA LTD·Filed 2000·Granted Apr 30, 2002·104 cites·26 claims
- 0696US6338431B1Locking knife blade with moving locking mechanism on bladeKAI USA LTD·Filed 2000·Granted Jan 15, 2002·102 cites·28 claims
- 0796US6145202AOpening and closing assisting mechansim for folding knifeKAI USA LTD·Filed 1998·Granted Nov 14, 2000·143 cites·34 claims
- 0894USD454768SPocket knife bladeKAI USA LTD·Filed 2001·Granted Mar 26, 2002·40 cites·1 claims
- 0993US7905022B2Folding knife having a locking mechanismKAI USA LTD·Filed 2010·Granted Mar 15, 2011·24 cites·17 claims
- 1092USD438085SPocket knifeKAI USA LTD·Filed 1999·Granted Feb 27, 2001·29 cites·1 claims
- 1192US6006385AMulti-toolKAI USA LTD·Filed 1997·Granted Dec 28, 1999·102 cites·23 claims
- 1290US7458159B2Folding knife having a locking mechanismKAI USA LTD·Filed 2005·Granted Dec 2, 2008·37 cites·14 claims
- 1390USD479104SKnifeKAI USA LTD·Filed 2002·Granted Sep 2, 2003·42 cites·1 claims
- 1489US10071489B2Locking folding knifeKAI USA LTD·Filed 2015·Granted Sep 11, 2018·11 cites·19 claims
- 1589USD566222SKnifeKAI USA LTD·Filed 2007·Granted Apr 8, 2008·42 cites·1 claims
- 1688US7774939B1Stud-lock knifeKAI USA LTD·Filed 2005·Granted Aug 17, 2010·29 cites·20 claims
- 1788US7681316B2Folding knife having a locking mechanismKAI USA LTD·Filed 2005·Granted Mar 23, 2010·23 cites·15 claims
- 1887US7574804B2Knife with sliding blade and disengageable deployment mechanismKAI USA LTD·Filed 2006·Granted Aug 18, 2009·38 cites·22 claims
- 1986USD484770SCarabiner knifeKAI USA LTD·Filed 2002·Granted Jan 6, 2004·65 cites·1 claims
- 2084USD450228SPocket knifeKAI USA LTD·Filed 2001·Granted Nov 13, 2001·21 cites·1 claims
- 2183USD595557SFolding knifeKAI USA LTD·Filed 2008·Granted Jul 7, 2009·29 cites·1 claims
- 2282US8028873B2Ratchet type pocket clipKAI USA LTD·Filed 2007·Granted Oct 4, 2011·10 cites·5 claims
- 2382USD581732SRound-ended santoku knifeKAI USA LTD·Filed 2008·Granted Dec 2, 2008·30 cites·1 claims
- 2482USD467783SSurface ornamentation for a knife handleKAI USA LTD·Filed 2001·Granted Dec 31, 2002·27 cites·1 claims
- 2581USD581733SRound-ended slicing knifeKAI USA LTD·Filed 2008·Granted Dec 2, 2008·28 cites·1 claims
- 2681USD569212SFolding knifeKAI USA LTD·Filed 2007·Granted May 20, 2008·27 cites·1 claims
- 2781US7370421B2Folding knife with removable bladeKAI USA LTD·Filed 2003·Granted May 13, 2008·39 cites·13 claims
- 2881US7340838B2Folding knife with safety lockKAI USA LTD·Filed 2003·Granted Mar 11, 2008·28 cites·18 claims
- 2980USD572542SUtility knifeKAI USA LTD·Filed 2007·Granted Jul 8, 2008·27 cites·1 claims
- 3078US7506446B2Locking mechanism for a folding knifeKAI USA LTD·Filed 2004·Granted Mar 24, 2009·29 cites·37 claims
- 3177USD579731SKnife bladeKAI USA LTD·Filed 2006·Granted Nov 4, 2008·22 cites·1 claims
- 3277USD560994SKnifeKAI USA LTD·Filed 2006·Granted Feb 5, 2008·25 cites·1 claims
- 3376US7395599B2Blade-assisting mechanism for a folding knifeKAI USA LTD·Filed 2004·Granted Jul 8, 2008·27 cites·22 claims
- 3476USD437197SScissorsKAI USA LTD·Filed 1999·Granted Feb 6, 2001·18 cites·1 claims
- 3576USD392131SRemovable shelf for a display caseKAI USA LTD·Filed 1997·Granted Mar 17, 1998·22 cites·1 claims
- 3675USD570180SFolding knifeKAI USA LTD·Filed 2006·Granted Jun 3, 2008·25 cites·1 claims
- 3774USD572562SFolding knifeKAI USA LTD·Filed 2007·Granted Jul 8, 2008·20 cites·1 claims
- 3873USD554437SKnifeKAI USA LTD·Filed 2006·Granted Nov 6, 2007·19 cites·1 claims
- 3973US6412130B1Multi-toolKAI USA LTD·Filed 1999·Granted Jul 2, 2002·30 cites·29 claims
- 4071US7296355B2Adjustable blade-assisting mechanism for a folding knifeKAI USA LTD·Filed 2004·Granted Nov 20, 2007·20 cites·25 claims
- 4170US9707687B2Folding knife with disengageable assisted-opening mechanismKAI USA LTD·Filed 2015·Granted Jul 18, 2017·2 cites·16 claims
- 4270USD607298SGut hookKAI USA LTD·Filed 2009·Granted Jan 5, 2010·17 cites·1 claims
- 4369USD455062SPocket knifeKAI USA LTD·Filed 2001·Granted Apr 2, 2002·10 cites·1 claims
- 4468USD575614SKnifeKAI USA LTD·Filed 2007·Granted Aug 26, 2008·17 cites·1 claims
- 4567US9393682B2Folding tool assemblyKAI USA LTD·Filed 2013·Granted Jul 19, 2016·3 cites·20 claims
- 4666USD593373SParing knife bladeKAI USA LTD·Filed 2008·Granted Jun 2, 2009·15 cites·1 claims
- 4766USD454043SPocket knife bladeKAI USA LTD·Filed 2001·Granted Mar 5, 2002·9 cites·1 claims
- 4864USD517892SKnife clipKAI USA LTD·Filed 2004·Granted Mar 28, 2006·14 cites·1 claims
- 4962USD559045SKnifeKAI USA LTD·Filed 2006·Granted Jan 8, 2008·12 cites·1 claims
- 5059USD581734SRound-ended steak knifeKAI USA LTD·Filed 2008·Granted Dec 2, 2008·11 cites·1 claims
Showing the top 50 of 59 patent records by PatentIndex Score.
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →