Assignee

GRANDT ANDRE

DE·2 granted patents·7 citations·filing 2006–2010

Technology mixH04R2 A42B1 G10K1

Top patents by PatentIndex Score

2 records

0164US8243942B2Headphones for connection to an external active noise compensation deviceGRANDT ANDRE·Filed 2006·Granted Aug 14, 2012·5 cites·1 claims
0256US8391530B2Helmet and apparatus for active noise suppressionGRANDT ANDRE·Filed 2010·Granted Mar 5, 2013·2 cites·12 claims

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