MRX

What this record means

The record shows that the mark “MRX” is no longer active; it was cancelled on March 27 2026 because the registrant, 4D PHARMA PLC, failed to file a Section 8 declaration. The mark was registered on the Principal Register in September 2019 for pharmaceuticals, specifically live biotherapeutics for treating cancer, brain injuries, central nervous system disorders, bowel disorders, lung disorders and diseases, inflammatory and autoimmune diseases, and related preparations. A similar name would raise the closest concern in the same narrow field of live biotherapeutic products. The record does not give the owner control over every use of “MRX”; it is limited to the listed goods. The prosecution history shows the mark was initially approved for publication, then registered, and later cancelled after a missed maintenance filing. No oppositions, cancellations, or court actions appear in the supplied history. For someone considering a similar name, the cancelled status reduces immediate risk, but the specific pharmaceutical scope remains a potential concern.