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Welcome to Electronic Patent Filing for UNREGISTERED eFILERS
A submission has not been filed officially at the USPTO until the e-filer executes the Submit function and the documents are received at the USPTO Eastern Time. The Acknowledgement Receipt is evidence of this submission.
All items denoted by * are required.

IMPORTANT: Please read the Legal Framework for using EFS-Web.  For information on the Paperwork Reduction Act as it pertains to: ePetitions, third party submissions under 37 CFR 1.290, Web-based application data sheets, and citations of prior art and written statements under 37 CFR 1.501, please see the OMB Clearance and PRA Burden Statement page.

*Main Functions

(This includes new filings of continuation, divisional, continuation-in-part and reissue applications, as well as reexamination and supplemental examination proceedings. A request for continued examination (RCE) and continued prosecution application (CPA) are considered existing documents and must be filed as a registered eFiler.)

Existing Application
Select Type of Submission for Existing Application/Proceeding

What is a Third-Party Preissuance Submission under 37 CFR 1.290?
     (for utility, design, or plant application only, and not a reissue application or reexam proceeding)
 (EXAMPLE: 99999999 , 99/999999 or 99/999,999)What is an Application Number?
  (EXAMPLE: 1234) What is a Confirmation Number?

WARNING: Applicants are prohibited from filing papers in their applications via this interface. Applicant papers filed via this interface will not be entered into the application file. If you wish to file papers electronically in your application, you must become a registered user. Applicants may obtain registered status by applying for a digital certificate for the access and use of EFS-Web and Private PAIR. Contact the Electronic Business Center (EBC) at 866-217-9197 for assistance.
Any required fee must be paid at the time of filing. REGISTERED eFILERS who authenticate can save "in-progress" submissions and return to edit them prior to completing the submission, but payment will be due upon filing of the completed submission. UNREGISTERED eFILERS do not have the option of saving "in-progress" submissions. After selecting the "Continue" button below, UNREGISTERED eFILERS must complete the submission and make any required payment.

What is a Prior Art Submission into a Patent File under 37 CFR 1.501?
     (NOT to be used as a request for reexamination)

Privacy Policy [new window]
If you close or exit the eFiling portal you will lose your work.
For your convenience, all links in the left hand side of the eFiling portal will open in new windows to help prevent accidental loss of information during filing.
Context-sensitive help (information graphic information links) will appear in a new window.

Why you should consider becoming a REGISTERED eFILER

  • What is a REGISTERED eFILER?

A Registered eFILER has both an assigned Customer Number and Digital Certificate for secure access to application documents both during and after the filing of a patent application.

  • Digital Certificates provide an e-Filer with the abillity to authenticate sessions by requiring positive identification of a customer using Public Key Infrastructure technologies.
  • Holders of Digital Certificates can take advantage of streamlined logins.
  • Registered e-Filers who authenticate can save "in-progress" submissions and return to edit them prior to completing filing.
  • This ability to save "in-progress" submissions provides added protection against loss of data in the event of a localized internet or office equipment failure or in the event of an unplanned system outage during an online filing session.
  • Registered e-Filers can electronically process subsequent actions on electronically filed cases without delay.
  • Registered e-Filers can review their confidential Private PAIR records for most of their electronically filed cases.

YES! I want to become a REGISTERED eFILER - Tell me how to obtain a Customer Number and register for a Digital Certificate now.

If you need help:
  • To ask questions about Patent e-Filing, or to suggest improvements to the online system, or report technical problems, please call the Patent Electronic Business Center at (866) 217-9197 (toll free) or send email to EBC@uspto.gov.
  • Send general questions about USPTO programs to the USPTO Contact Center (UCC) .
  • For general questions regarding a petition, or requirements for filing a petition, contact the Office of Petitions Help Desk at 1 800-786-9199.