DF

David B. Folsom

FS Federal Signal: 1 patents #293 of 717Top 45%
SP Spx: 1 patents #217 of 468Top 50%
📍 Bridgton, ME: #4 of 19 inventorsTop 25%
🗺 Maine: #1,571 of 4,281 inventorsTop 40%
Overall (All Time): #2,184,179 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6953346 Method and apparatus for high power switching Henry Downs, Brian K. Pomerleau 2005-10-11
4951013 Phase shift controlled broadcast switching system William A. DeCormier, Philip C. Noll 1990-08-21