How is the Manual of Classification for the USPC structured?

The Manual of Classification for the USPC system is structured into several parts, as outlined in MPEP 902.01:

• Overview of the U.S. Patent Classification System
• Classes Within the U.S. Classification System Arranged by Related Subject Matter
• Classes Arranged by Art Unit (CAAU)
• Classes Arranged Numerically With Art Unit and Search Room Locations (CAN)
• Classes Arranged in Alphabetical Order (CAA)
• Class Schedules

Each part serves a specific purpose in organizing and accessing patent classification information.

To learn more:

• Manual of Classification
• USPC Structure
• Patent Classification Guide