DM

Douglas P. Marren

TA Tacony: 2 patents #4 of 13Top 35%
📍 Chesterfield, MO: #2,561 of 6,461 inventorsTop 40%
🗺 Missouri: #8,863 of 23,789 inventorsTop 40%
Overall (All Time): #2,165,656 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D527505 Vacuum cleaner John F. Kaido 2006-08-29
D515754 Vacuum cleaner John F. Kaido 2006-02-21