DN

Donald G. Needham

PP Phillips Petroleum: 12 patents #139 of 1,401Top 10%
PC Polyplus Co.: 4 patents #1 of 5Top 20%
📍 Bartlesville, OK: #62 of 1,143 inventorsTop 6%
🗺 Oklahoma: #260 of 12,736 inventorsTop 3%
Overall (All Time): #148,146 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 26–27 of 27 patents

Patent #TitleCo-InventorsDate
4262661 Solar energy absorption material or coating comprising an arylene sulfide polymer 1981-04-21
4187214 Fire retardant adhesive polyolefin compositions Ray D. Griffin 1980-02-05