FZ

Frederick J. Zoepfl

PP Phillips Petroleum: 1 patents #819 of 1,401Top 60%
Overall (All Time): #3,995,136 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4586995 Polymer and irradiation treatment method James C. Randall 1986-05-06