The deadline for migrations is July 16. PKI authentication for EFS-Web and Private PAIR is permanently disabled. Please authenticate using a verified account. See the authentication change webpage for more information and updates.

Check the filing status of your patent application


Private PAIR

Securely access information on your pending patent application

(New Method)

Check the status of a pending application: sign-in

Learn more about the new authentication method to sign in to EFS-Web and Private PAIR.

Public PAIR

For documents and status on publicly available patents and applications

Check the status of a published application

Migration Tool

Allows existing PKI digital certificate holders (Registered Practitioners and Pro Se Inventors) to verify their account using their PKI digital certificate. Once account verification is complete, the account can be used to sign-in to EFS-Web and Private PAIR.

For step-by-step process, see Migration Guide.

Sponsorship Tool

The Sponsorship Tool is now available for registered practitioners to sponsor their support staff to work on their behalf. In order to sponsor support staff, a practitioner must first migrate to a account and the support staff must each have a account.

For step-by-step instructions, see Sponsorship Tool Guide

Sponsor Support Staff


The Patent Application Information Retrieval (PAIR) system provides USPTO customers a safe, simple, and secure way to retrieve and download information regarding patent application status. There are two PAIR applications, Public PAIR and Private PAIR. Public PAIR provides access to issued patents and published applications. Private PAIR provides secure real-time access to pending application status and history using digital certificates.

In order to access Private PAIR, you must:

  • be a registered patent attorney/agent, an independent inventor, or a person granted limited recognition,

  • have a customer number,

  • have a digital PKI certificate to secure the transmission of the application to the USPTO

To register for Private PAIR visit our Getting Started - New Users page

Public PAIR- Search issued patents and published applications

Private PAIR- Securely search pending applications

e-Office Action- Learn how to receive e-notification of USPTO communications

PAIR Resources- Visit our resource page for help on getting started with PAIR

Announcements and Notices

PAIR Announcements- For recent news related to both Public and Private PAIR