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Class 507 - Earth boring, well treating, and oil field chemistry

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154 Subclasses


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Definition

Compositions of matter for use in earth boring, well treating, or preventing contaminant deposits in petroleum oil conduits having or not having structure, physical form, or heterogeneous arrangement of components.

Processes of making, or processes peculiar to making such compositions and for which there is no provision elsewhere.

Mere methods of use of said compositions or of a compound in earth boring, well treating, or in preventing contaminant deposits in petroleum oil conduits.

(1) Note. In this class, each composition and the processes that are peculiar to making the same are classified based on the whole composition and its complete or primary function or quality, and such processes are classified with the corresponding composition.

Lines with other classes and within this class

Class 507 is to be considered an integral part of Class 252 (after subclass 611) and follows the schedule hierarchy, retaining all pertinent definitions and class lines of Class 252.

The rules for determining Class placement of the Original Reference (OR) for claimed chemical compositions are set forth in the Class Definition of Class 252 in the section LINES WITH OTHER CLASSES AND WITHIN THIS CLASS, subsection COMPOSITION CLASS SUPERIORITY, which includes a hierarchical ORDER OF SUPERIORITY FOR COMPOSITION CLASSES.

 
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