PKI authentication for EFS-Web and Private PAIR will be unavailable starting on Wednesday, June 5 at 12:01 AM ET, until further notice. Please authenticate using a verified account. See the USPTO Systems Status and Availability page for more information and updates.

Authentication Change for EFS-Web and PAIR

Important update: The deadlines related to authentication change and migration for EFS-Web and Private PAIR are being extended due to technical issues. We will announce the new deadlines when they are determined. Until then, you can still authenticate using either accounts or PKI certificates.

If you have not done so, please create your account, ensure it is opted in to two-step authentication, and use the Migration Tool to link your existing PKI certificate to your account. Registered practitioners should use the Sponsorship Tool to sponsor their support staff to work on their behalf. New users must obtain a verified account to access EFS-Web and PAIR using the new verification process, which requires a notarized Patent Electronic System Verification Form. Frequently asked questions and answers can be found in the FAQ section below.

How does logging in with help you?

  • Eliminates shared credentials: practitioners no longer need to share accounts with support staff because they will all have their own accounts.
  • Modernizes security processes with two-step authentication: username and password plus a one-time code delivered by email, voice phone call or mobile device application.
  • Saves time by granting access to multiple USPTO systems with one consolidated sign-in process.
  • Ensures USPTO compliance with the latest Federal Information Security Management Act requirements.
  • Helps resolve browser compatibility issues.
  • Gives users access to EFS-Web and Private PAIR until the planned full release of Patent Center in 2020.


Legal Information and Guidance

If you need assistance creating your account, please call the USPTO Contact Center (UCC) at 800-786-9199. For assistance with migration and/or sponsorship, please contact the Patent Electronic Business Center at or 866-217-9197