PP

Philip H. Porter

📍 Pittsfield, IL: #6 of 11 inventorsTop 55%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #3,963,634 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4787316 Expandable, self-tamping explosive bag Fred C. Drury, Donald J. Westmaas 1988-11-29