×
Confirmation
Contact
Toggle navigation
Revision & Reclassification
CPC
Consolidated Revision Concordance List (RCL)
List of Deleted Symbols
Notice of Changes
Reclassification Request
Revision & Reclassification Project Status
Revision Request
IPC
Revision & Reclassification Project Status
Locarno
Revision & Reclassification Project Status
USPC
Orders
Revision Request (Plants and Designs only)
General Training
CPC
Classification Allocation Tool (CAT) and Scheme Navigator
Cooperative Patent Classification (CPC) Training
FAQ
Guide to the CPC (Cooperative Patent Classification)
Restrictions and CPC
IPC
Guide to International Patent Classification
FAQ
Strasbourg Agreement
Locarno
About the Locarno Classification
FAQ
Locarno Agreement
USPC
General Guide
Additional Resources
CPC
Examiner Synonym Tool
Policy
QA Tool Lookup (QN Only)
Scheme
Y10T Concordance
IPC
General Resources
IPC Scheme
Locarno
Locarno Classification
US-to-Locarno Concordance
USPC
Automated Classification Evaluator (Authorized user only)
Class Titles
E-Subclass
General Resources
Modify USPC picture (Design only)
Patent Transfer Inquiry (PTI)
Other
Espacenet Patent Search
JPO Classification system- File Index (FI) and F-terms
Nice Agreement
Vienna Agreement
WIPO Standards on Industrial Property Information and Documentation
Contacts
Patent Classification
Chemical/Biotech
Designs
Electrical/Computer Science
Mechanical/General
TC POCs
TC 1600
TC 1700
TC 2100
TC 2400
TC 2600
TC 2800
TC 2900
TC 3600
TC 3700
CPC Feedback (CFAS)