DF

Douglas Freeland

📍 San Diego, CA: #11,944 of 23,606 inventorsTop 55%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,334,000 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4881472 Ignition system and control means for pelletized-fuel furnace Thomas Stromberger, Dwain Freeland 1989-11-21
D274157 Aircraft canopy — 1984-06-05