DC

Douglas Campbell

📍 Derry, PA: #2 of 6 inventorsTop 35%
🗺 Pennsylvania: #1,270 of 5,047 inventorsTop 30%
Overall (2004): #232,861 of 270,089Top 90%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6805115 Catalytic embers for use with a gas fired log set Larry E. Campbell, Tracy D. Staller 2004-10-19