CA

Christopher A. Armstrong

DI Ductmate Industries: 1 patents #1 of 4Top 25%
📍 Masontown, PA: #4 of 17 inventorsTop 25%
🗺 Pennsylvania: #1,792 of 6,061 inventorsTop 30%
Overall (2011): #337,408 of 364,097Top 95%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7992904 Sealing mechanism for ductwork Vincent L. Bloom, Douglas G. Gudenburr, Andrew J. Male 2011-08-09