The United States Patent Classification is an official

patent classification A patent classification is a system for examiners of patent offices or other people to categorize (code) documents, such as published patent applications, according to the technical features of their content. Patent classifications make it feasible ...

system in use and maintained by the

United States Patent and Trademark Office The United States Patent and Trademark Office (USPTO) is an agency in the U.S. Department of Commerce that serves as the national patent office and trademark registration authority for the United States. The USPTO's headquarters are in Alex ...

(USPTO). It was mostly replaced by the

Cooperative Patent Classification The Cooperative Patent Classification (CPC) is a patent classification system, which has been jointly developed by the European Patent Office (EPO) and the United States Patent and Trademark Office (USPTO).

History and revisions

Some USPC classifications date back to at least as early as 1899. ''The Manual of Classification'' is usually published in full as the Basic Manual of this system every 2 years. Basic Manuals reflect current classifications as of December of even-numbered years. Revisions to the Basic Manual occur at 6-month intervals. Pages of the Manual revisions are inserted as replacements to update the previous versions.

References

{{USGovernment, url=http://www.uspto.gov/web/offices/pac/mpep/documents/0900_902_01.htm#sect902.01, title=Manual of Patent Examining Procedure, Chapter 902

External links

USPTO Office of Patent Classification home page
* ttp://patentclassifier.com/large_text A machine-learning based approach for automatic assignment of a USPTO class to an invention Patent classifications United States patent law

See also

References

External links