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.
Advisory(23Mar2018): Due to system maintenance on Saturday, April 7, starting at 12:01 AM and ending at 11:59 PM (ET), EFS-Web for Registered eFilers will be unavailable.
During the maintenance period, applicants may file new applications, except for National Stage applications under 35 U.S.C. 371, via EFS-Web for Unregistered eFilers or EFS-Web Contingency.
If you need to file a National Stage application under 35 U.S.C. 371 or a follow-on submission to an existing application during the maintenance period, please use an alternative filing method.
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 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 authenticatecan 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.
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.