Trademark Overview
On Thursday, December 11, 2025, a trademark application was filed for SIGMA with the United States Patent and Trademark Office. The USPTO has given the SIGMA trademark a serial number of 79449438. The federal status of this trademark filing is NEW APPLICATION - RECORD INITIALIZED NOT ASSIGNED TO EXAMINER as of Thursday, May 7, 2026. This trademark is owned by SigmaBrowser OÜ. The SIGMA trademark is filed in the Communication Services category with the following description:
Transmission of digital files; transmission of electronic mail; providing user access to global computer networks; video-on-demand transmission; providing internet chatrooms; providing online forums.