MPEP § 903.02 — Basis and Principles of Classification in USPC (Annotated Rules)
This page consolidates and annotates all enforceable requirements under MPEP § 903.02, including statutory authority, regulatory rules, examiner guidance, and practice notes. It is provided as guidance, with links to the ground truth sources. This is information only, it is not legal advice.
Basis and Principles of Classification in USPC
This section addresses Basis and Principles of Classification in USPC.
Key Rules
Permitted Actions (2)
Many of the principles that form the basis of classification within USPC used in the U.S. Patent and Trademark Office are set forth in the “Examiner Handbook to the U.S. Patent Classification System” which can be accessed from either the intranet on the Classification Home Page (http://ptoweb.uspto.gov/patents/classification- resources/) or the internet on the Office of Patent Classification home page (www.uspto.gov/Classification). Any questions not covered in this handbook can be directed to the Office of Patent Classification.
Many of the principles that form the basis of classification within USPC used in the U.S. Patent and Trademark Office are set forth in the “Examiner Handbook to the U.S. Patent Classification System” which can be accessed from either the intranet on the Classification Home Page (http://ptoweb.uspto.gov/patents/classification- resources/) or the internet on the Office of Patent Classification home page (www.uspto.gov/Classification). Any questions not covered in this handbook can be directed to the Office of Patent Classification.
Source Text from USPTO’s MPEP
This is an exact copy of the MPEP from the USPTO. It is here for your reference to see the section in context.
Official MPEP § 903.02 — Basis and Principles of Classification in USPC
Source: USPTO903.02 Basis and Principles of Classification in USPC [R-07.2022]
Many of the principles that form the basis of classification within USPC used in the U.S. Patent and Trademark Office are set forth in the “Examiner Handbook to the U.S. Patent Classification System” which can be accessed from either the intranet on the Classification Home Page (http://ptoweb.uspto.gov/patents/classification- resources/) or the internet on the Office of Patent Classification home page (www.uspto.gov/Classification). Any questions not covered in this handbook can be directed to the Office of Patent Classification.