WP

Wiley D. Perkins

PP Phillips Petroleum: 1 patents #819 of 1,401Top 60%
Overall (All Time): #3,816,540 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5183538 Extraction plus ion exchange processing of a brine stream Lacey E. Scoggins, Fu-Ming Lee, Allen Timothy Chang 1993-02-02