DS

David Brian Schein

NG Northrop Grumman: 1 patents #859 of 2,250Top 40%
Overall (All Time): #3,676,093 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5717172 Sound suppressor exhaust structure Ralph Griffin, William David Bard 1998-02-10