Assignee
CHRISTENSEN DUANE
US·5 granted patents·3 pending applications·34 citations·filing 2008–2014
Top patents by PatentIndex Score
8 records- 0186US8104669B2Strengthened folder with inserted elements and system for element interchangeabilityCHRISTENSEN DUANE·Filed 2008·Granted Jan 31, 2012·12 cites·10 claims
- 0279US8540138B1Stair step portfolio fileCHRISTENSEN DUANE·Filed 2010·Granted Sep 24, 2013·6 cites·15 claims
- 0372US8425387B1Method for manufacturing stair step portfolio fileCHRISTENSEN DUANE·Filed 2010·Granted Apr 23, 2013·4 cites·10 claims
- 0470US2008184604A1Layered-construction Document Storage SystemCHRISTENSEN DUANE·Filed 2008·Application pending·0 cites
- 0569US8534534B2Integrated tab file systemCHRISTENSEN DUANE·Filed 2010·Granted Sep 17, 2013·2 cites·13 claims
- 0665US2014128236A1Strengthened Folder With Inserted Elements and System for Element InterchangeabilityCHRISTENSEN DUANE·Filed 2014·Application pending·0 cites
- 0761USD734390SFile folder with multiple pocketsCHRISTENSEN DUANE·Filed 2013·Granted Jul 14, 2015·10 cites·1 claims
- 0860US2012125985A1Strengthened Folder With Inserted Elements and System for Element InterchangeabilityCHRISTENSEN DUANE·Filed 2012·Application pending·0 cites
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