Inventor

ECHELBERGER LARRY M

2 patents

Patents

2 patents

US4039485AAug 2, 1977

Ion exchange of metals from aqueous solutions using compositions of synthetic resins reacted with polyisocyanurate salts

MARATHON OIL CO12 citations70

US4087456AMay 2, 1978

Purification of oleophilic hydrocarbon sulfonate product mixtures

MARATHON OIL CO1 citations42