WP

William C. Perchak

PI Plastofilm Industries: 5 patents #3 of 21Top 15%
📍 Chicago, IL: #2,537 of 13,327 inventorsTop 20%
🗺 Illinois: #17,877 of 84,256 inventorsTop 25%
Overall (All Time): #1,062,932 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
4819829 Closure for pourable materials container David B. Rosten, Douglas E. Foos, Richard L. Partlow, Jr., Gary G. Buhrke 1989-04-11
4784268 Stand-up or hanging display blister and package 1988-11-15
D286111 Combined display and storage case for pens and the like 1986-10-14
4519500 Display/storage package and file therefor 1985-05-28
4505404 Container with integral closure Douglas E. Foos 1985-03-19