US PATENT SUBCLASS 507 / 109-- .~.~.~.~ Includes metal compound other than an alkali or alkaline earth metal compound (e.g., Al, Cr, Fe, Mn, Cu, etc.)

US PATENT SUBCLASS 507 / 109
.~.~.~.~ Includes metal compound other than an alkali or alkaline earth metal compound (e.g., Al, Cr, Fe, Mn, Cu, etc.)

Current as of: June, 1999
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507 /	HD	EARTH BORING, WELL TREATING, AND OIL FIELD CHEMISTRY

100	DF	EARTH BORING {4}
103	DF	.~ Contains organic component {14}
106	DF	.~.~ Organic component is lignin or humate or derivative thereof (e.g., tannin, quebracho extract, etc.) {2}
108	DF	.~.~.~ Lignin or humate component contains sulfur or is reacted with substance containing sulfur (e.g., lignosulfonate, etc.) {1}
109		.~.~.~.~ Includes metal compound other than an alkali or alkaline earth metal compound (e.g., Al, Cr, Fe, Mn, Cu, etc.)

DEFINITION

Classification: 507/109

Includes metal compound other than an alkali or alkaline earth metal compound (e.g., Al, Cr, Fe, Mn, Cu, etc.):

(under subclass 108) Composition wherein said composition contains a metal compound other than an alkali or alkaline earth metal compound.

(1) Note. Alkali or alkaline earth metals include Li, Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba, and Ra.

(2) Note. Included within this subclass are compositions which contain: (i) a lignin or humate component containing sulfur or reacted with a substance containing sulfur, and (ii) a metal other than alkali or alkaline earth metal, regardless of whether the two components (i and ii) are part of the same compound.