EFS-Web Guidance and Resources


EFS Web Advice: EFS Web Logo

Benefits of using the Electronic Filing System (EFS-Web)

  • EFS-Web is safe. Filings made with EFS-Web provide you with the same legal protection as paper-based filings. You receive an electronic receipt and confirmation, as well as the ability to print the receipt for your records, affirming your receipt date.
  • EFS-Web is simple. Even the largest and most complex patent applications can be submitted by attaching PDF files and filling out a few simple web screens.
  • EFS-Web is secure. EFS-Web submissions are protected through state-of-the-art security methods, including Transport Layer Security (TLS), and if you sign up as a registered filer, Digital Certificates, one of the most secure methods now available.
  • EFS-Web is fast. In just a few minutes and using a few web screens, you can submit a patent application, pay for your filing and receive an acknowledgment receipt.
  • EFS-Web is flexible. EFS-Web requires you to make no changes to the tools, processes or workflows you use to author patent applications and documents. Filing with EFS-Web does not require you to learn how to use new authoring tools.
  • EFS-Web is forgiving. EFS-Web validates whether the PDF files and data you're trying to file can be accepted before they are submitted. If there's a problem, EFS-Web will tell you why the document can't be submitted - allowing you to take corrective action quickly.



Getting Started


Learn More about EFS-Web

Indexing Guides


Quick Start Guides

Advanced Training


Legal Information and Guidance/Patent Application Initiatives




EFS-Web Contingency FAQs


Customer Support

Patent Electronic Business Center

  • 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.