DC

Douglas J. Cottle

📍 Middletown, OH: #148 of 257 inventorsTop 60%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #3,901,044 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4918881 Observation dome for buildings Andrew C. Helton 1990-04-24