PG

Porter W. Gregory

ET Ethyl: 1 patents #298 of 494Top 65%
Overall (All Time): #3,889,746 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5064867 Production of foamed polymer structures James R. Barringer, H. Eugene Broemmelsiek, Carroll W. Lanier, Raymond Lee, Harold E. Schulz 1991-11-12