United States Patent Classification

English Abstract: 

"The USPC is a system for organizing all U.S. patent documents and many other technical documents into relatively small collections based on common subject matter. Each subject matter division in the USPC includes a major component called a class and a minor component called a subclass. A class generally delineates one technology from another. Subclasses delineate processes, structural features, and functional features of the subject matter encompassed within the scope of a class. Every class has a unique alphanumeric identifier, as do most subclasses.
A class/subclass pair of identifiers uniquely identifies a subclass within a class (for example, the identifier '2/456' represents Class 2, Apparel, subclass 456, Body cover). This unique identifier is called a classification symbol, or simply a classification, or USPC classification, to distinguish it from classifications of other patent classification schemes. A subclass represents the smallest division of subject matter in the USPC under which documents may be collected."

Alternative Title: 
USPC
English Title: 
United States Patent Classification
Author: 
United States Patent and Trademark Office (USPTO)
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Address: 
600 Dulany Street, Alexandria, VA, 22314, United States