Advisory: PKI Deadline Postponed

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.

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  • EFS-Web - File as a Registered or Unregistered eFiler, view EFS-Web Announcements, and find useful EFS-Web Resources.
  • Prioritized Examination - Read information about filing a Prioritized Examination including FAQs, quick start guides, and other useful resources.
  • Accelerated Examination - Read detailed information about filing an Accelerated Examination including FAQs, guidelines, sample documentation, and other useful resources.
  • First Action Interview (FAI) - Read information about the eligibility of the program.
  • Patent Prosecution Highway (PPH) - Find fast track examination information including request forms for each of the PPH programs.
  • Priority Document Exchange (PDX) - Program for direct electronic priority document exchange with participating foreign intellectual property offices (EPO, JPO, KIPO, and WIPO).


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.