JD

John Dahl

TH Thx: 2 patents #7 of 12Top 60%
Overall (All Time): #1,347,078 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12417872 Bushing for distribution transformer Marek Kornowski, Raniero Montanino, Sadegh Ghanbar, Justin Schoonbaert 2025-09-16
8509457 Tone balance volume control Casey Divine 2013-08-13
8452028 Dynamic surround channel volume control Casey Divine 2013-05-28