DL

Douglas B. Learn

📍 Doylestown, PA: #596 of 956 inventorsTop 65%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,034,896 of 4,157,543Top 75%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8933112 Topical liquid to ameliorate pain and promote healing of burn-injured skin Lee K. Roberts, William L. Hickerson 2015-01-13