Jump to main content
File a patent application online with EFS-web
Single interface replacement for EFS-Web, Private PAIR and Public PAIR
Check patent application status with Patent Center and Private PAIR
Pay maintenance fees and learn more about filing fees and other payments
Resolve disputes regarding patents with PTAB
View international patent filings
File a trademark application and other documents online through TEAS.
Check trademark application status and view all documents associated with an application/registration.
Trademark fees and payment
Learn about our current legislative initiatives.
Find out how to protect intellectual property in other countries.
Find upcoming programs related to IP policy and international affairs
Library: California State Library
Sacramento Patent and Trademark Resource Center
We would like to know what you found helpful about this page.
We may have questions about your feedback, please provide your email address.
The USPTO is currently improving our content to better serve you. Can you describe the problem?
Write your message*
For other assistance, please see our contact us page.