USPTO published an Intent-to-Use trademark application for BLACKSIGN (Serial No. TM99346761) on August 20, 2025. The application covers Class 45 legal consulting services in the fields of blockchain-based technologies, smart contracts, digital asset compliance, intellectual property strategy, startup legal structuring, and negotiation of commercial agreements. The applicant has until March 31, 2026, to either demonstrate use of the mark in commerce or request a further extension.

Registrants of similar marks in Class 45 or parties providing legal consulting services in blockchain and digital assets should review this filing to assess potential conflicts with their own trademark registrations or common law rights. No immediate action is required; however, monitoring the application status through the USPTO TSDR system is advisable. Trademark opposition proceedings may be available if the application proceeds to publication.