DH

Donald O. Hanson

PP Phillips Petroleum: 6 patents #271 of 1,401Top 20%
📍 Bartlesville, OK: #317 of 1,143 inventorsTop 30%
🗺 Oklahoma: #1,798 of 12,736 inventorsTop 15%
Overall (All Time): #888,318 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5597892 Process for separating diluents from solid polymers utilizing a two-stage flash and a cyclone separator 1997-01-28
5575979 Process and apparatus for separating diluents from solid polymers utilizing a two-stage flash and a cyclone separator 1996-11-19
4737280 Separation of solid polymers and liquid diluent 1988-04-12
4589957 Monomer and diluent recovery Fred T. Sherk 1986-05-20
4461889 Separation of solid polymers and liquid diluent 1984-07-24
4424341 Separation of solid polymers and liquid diluent Fred T. Sherk 1984-01-03