Trademark documents must be filed electronically using the trademark electronic filing system, which comprises the Trademark Electronic Application System (TEAS), available at https://www.uspto.gov/trademarks/apply and Trademark Center, available at https://trademarkcenter.uspto.gov/. See 37 C.F.R. §§2.21(a), 2.23(a), 7.4(a), 7.25(a). See TMEP §301.01 regarding the mandatory use of the trademark electronic filing system for filing trademark documents and the limited exceptions when paper submissions may be submitted. Electronic filings may be submitted only after the user has established a USPTO.gov account and completed the one-time mandatory identity verification process.

Requests to record assignments, name changes, and other documents affecting title to an application or registration should be filed using Assignment Center at https://assignmentcenter.uspto.gov/. See 37 C.F.R. §3.25(c). See TMEP Chapter 500 and the webpage https://www.uspto.gov/trademark/trademark-assignments-change-search-ownership for more information regarding assignments.

The Trademark Trial and Appeal Board's (Board) electronic filing system comprises the Electronic System for Trademark Trials and Appeals (ESTTA), available at https://estta.uspto.gov/, and TTAB Center, available at https://ttabcenter.uspto.gov/, and must be used to file requests for extensions of time to oppose, notices of opposition, petitions to cancel, appeals, motions, briefs, notices of change of address, and other documents in Board proceedings. See 37 C.F.R. §2.126(a).