DC

David L. Campbell

CA Cannondale: 2 patents #17 of 34Top 50%
UN Unknown: 2 patents #12,644 of 83,584Top 20%
RC Rogers Holster Co.: 1 patents #3 of 6Top 50%
📍 Bolivar, OH: #5 of 33 inventorsTop 20%
🗺 Ohio: #13,499 of 73,341 inventorsTop 20%
Overall (All Time): #786,903 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
12383078 Play yard with removable padded floor Joey Srour, Robert Omansky, Corey A. Campbell, Cory Everman 2025-08-12
9261320 Magazine block for dry fire practice William H. Rogers, Matthew E. McKendrick 2016-02-16
4936884 Grass cutting device 1990-06-26
4712650 Hood conveying apparatus having an outwardly reaching basket 1987-12-15
4429818 Carrier racks for bicycles Thomas C. Patterson 1984-02-07
D271759 Carrier rack for bicycles Thomas C. Patterson 1983-12-13