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.

File Online

EFS-Web logo

  • About EFS-Web - File as a Registered or Unregistered eFiler, view EFS-Web Announcements, and find useful EFS-Web Resources.



Full technical support for EFS-Web is available through the Patent Electronic Business Center (EBC) at 866-217-9197 (toll-free) or 571-272-4100 from 6 a.m. to 12 Midnight Eastern Time, Monday - Friday.