RD

Roy B. Duke

MO Marathon Oil: 4 patents #26 of 204Top 15%
📍 Littleton, CO: #415 of 1,939 inventorsTop 25%
🗺 Colorado: #10,703 of 40,980 inventorsTop 30%
Overall (All Time): #1,308,433 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4439345 Demulsification of a crude oil middle phase emulsion 1984-03-27
4414119 Injectivity of crude oil and petroleum sulfonate slugs by the addition of an alkylbenzene sulfonate 1983-11-08
4396530 Mineral acid demulsification of surfactant-containing emulsion 1983-08-02
4384977 Polyalkyloxyamines as demulsifying agents 1983-05-24