Can a computer program listing appendix be submitted on a USB flash drive?

This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice.

No, a computer program listing appendix cannot be submitted on a USB flash drive. According to MPEP 608.05(a), the appendix must be submitted either:

• As a text file via the USPTO’s electronic filing system (EFS-Web or Patent Center)
• On one or more compact discs (CD-ROM or CD-R)

The MPEP specifically states: “A computer program listing appendix may be submitted as a text file via EFS-Web or on compact disc conforming to the standards set forth in 37 CFR 1.52(e).” USB flash drives are not mentioned as an acceptable medium for submission.