DB

Douglas N. Berger

IT Integrated Environmental Technologies: 2 patents #4 of 9Top 45%
Overall (All Time): #2,212,486 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6371711 Valveless continuous atmospherically isolated container feeding assembly — 2002-04-16
6018542 Sealed electrode feeding assembly — 2000-01-25