DM

David J. Marvin

TB The Boeing: 1 patents #8,242 of 15,756Top 55%
📍 Wallingford, PA: #102 of 155 inventorsTop 70%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,002,621 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4614316 Stowable sliding filter Walter F. Darges 1986-09-30