RB

Raymond M. Ballard

EA E.I. Du Pont De Nemours And: 2 patents #2,942 of 8,010Top 40%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,332,087 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4850545 Apparatus for winding film Albert W. Forrest, Jr. 1989-07-25
4193559 Film web winding assembly — 1980-03-18