DD

Dennis E. Derr

BS Bally Engineered Structures: 1 patents #3 of 3Top 100%
📍 Macungie, PA: #196 of 314 inventorsTop 65%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,916,272 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4974383 Sandwich panel Ernest N. Litzenberger 1990-12-04