DF

David M. Frankel

📍 Bethesda, MD: #720 of 2,269 inventorsTop 35%
🗺 Maryland: #10,129 of 35,612 inventorsTop 30%
Overall (All Time): #1,440,654 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11154097 Apparatus to enhance shirt collar appearance 2021-10-26
10299982 Systems and methods for blind and visually impaired person environment navigation assistance 2019-05-28
4745290 Method and apparatus for use in making custom shoes Leo Beiser 1988-05-17