DW

Douglas Frank Winker

EL Ets Lindgren: 1 patents #11 of 20Top 60%
ET Ets-Lindgren: 1 patents #4 of 9Top 45%
Overall (All Time): #1,993,056 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9799317 Acoustic chamber with low frequency transparency — 2017-10-24
7610810 Methods for producing acoustic sources — 2009-11-03