CZ

Chuck Zupan

Overall (All Time): #2,069,948 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8590669 Sound attenuating device using an embedded layer for acoustical tuning Barry Wyerman, Michael Sargent 2013-11-26
8418806 Sound attenuating device using an embedded layer for acoustical tuning Barry Wyerman, Michael Sargent 2013-04-16