DK

Drew Kallen

AS Aura Systems: 2 patents #12 of 61Top 20%
RO Rockford: 2 patents #9 of 33Top 30%
Overall (All Time): #1,003,298 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9025809 Voicecoil affixation James C. Strickland 2015-05-05
9008348 Low profile loudspeaker James C. Strickland 2015-04-14
7088841 Subwoofer 2006-08-08
5624155 Electromagnetic transducer Jeffrey Bluen, Dennis Bulgatz 1997-04-29
5424592 Electromagnetic transducer Jeffrey Bluen, Dennis Bulgatz 1995-06-13