Marion K. Freeman

ER Energy & Minerals Research: 1 patents #2 of 8Top 25%

📍 West Chester, PA: #823 of 1,305 inventorsTop 65%

🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%

Overall (All Time): #4,121,276 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4226727	Persistent fire suppressant composition	William B. Tarpley, Jr., John R. Huzinec	1980-10-07