US PATENT SUBCLASS 554 / 14-- .~.~.~.~.~.~ Plural diverse solvents utilized together or sequentially (e.g., solvent is mixture of acetone and hexane, ethyl and isopropyl alcohols, etc.)

US PATENT SUBCLASS 554 / 14
.~.~.~.~.~.~ Plural diverse solvents utilized together or sequentially (e.g., solvent is mixture of acetone and hexane, ethyl and isopropyl alcohols, etc.)

554 /	HD	ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*	DD	ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1	DF	.~ Fatty compounds having an acid moiety which contains the carbonyl of a carboxylic acid, salt, ester, or amide group bonded directly to one end of an acyclic chain of at least seven (7) uninterrupted carbons, wherein any additional carbonyl in the acid moiety is (1) part of an aldehyde or ketone group, (2) bonded directly to a noncarbon atom which is between the additional carbonyl and the chain, or (3) attached indirectly to the chain via ionic bonding {23}
8	DF	.~.~ Extraction directly from animal or plant source material (e.g., recovery from garbage, fish offal, slaughter house waste, whole fish, olive fruit, etc.) {6}
9	DF	.~.~.~ Legume, nut, or seed source material (e.g., peanut, soya bean, rice bran, etc.) {4}
12	DF	.~.~.~.~ Organic solvent extraction {3}
13	DF	.~.~.~.~.~ Halogen or oxygen in the solvent (e.g., carbon tetrachloride, ethanol, etc.) {1}
14		.~.~.~.~.~.~ Plural diverse solvents utilized together or sequentially (e.g., solvent is mixture of acetone and hexane, ethyl and isopropyl alcohols, etc.)

Classification: 554/14

(under subclass 13) Processes wherein two or more different solvents are utilized simultaneously or in succession.