RYZENTAMOS
Dead · Refused DEAD/APPLICATION/Refused/Dismissed or Invalidated
What this record means
The record shows that the application for RYZENTAMOS has been abandoned, so it is not a live or registered mark; the owner listed is RayzeBio, Inc., a Delaware corporation. The filing covered Class 005 pharmaceutical preparations for treating a very wide range of diseases and for diagnostic radiopharmaceuticals, so a later use of a similar name in the same therapeutic or diagnostic drug space would be the closest area of concern. The abandonment means the USPTO record does not give RayzeBio control over every possible use of the word “RYZENTAMOS,” only over the specific goods described. The prosecution history indicates the application proceeded to a Notice of Allowance on Oct 21 2025, but no Statement of Use was filed, leading to an abandonment notice and final abandonment on May 25 2026. The supplied history shows no oppositions, cancellations or court actions, so there are no visible enforcement signals. I'd treat this as a moderate concern if you plan a similar name for pharmaceutical products, but the risk is lower for unrelated goods.
Informational only - not legal advice.Mark Trademark
| Drawing type | 4 - STANDARD CHARACTER MARK |
| Filing basis | Intent-to-Use (§1(b)). |
| Status | Abandoned because no Statement of Use or Extension Request timely filed after Notice of Allowance was issued. To view all documents in this file, click on the Trademark Document Retrieval link at the top of this page. |
Key dates
| Application filed | Jun 11, 2025 |
| Published for opposition | Aug 26, 2025 |
| Notice of Allowance | Oct 21, 2025 |
| Status date | May 25, 2026 |
Goods & services
Pharmaceutical preparations for the treatment and prevention of oncological, hematological, metabolic, endocrine, musculoskeletal, cardiovascular, cardiopulmonary, genitourinary, hepatological, respiratory, neurological, gastrointestinal, dermatological, psychiatric, and immune system related diseases and disorders; diagnostic radiopharmaceutical preparations
Owner & representation
| Owner | RayzeBio, Inc. |
| Address | 5505 Morehouse Drive, Suite 300, San Diego, CALIFORNIA UNITED STATES 92121 |
| Entity | CORPORATION - organized in DELAWARE |
| Attorney of record | Xiomara Triana |
| Correspondent | Xiomara Triana |
| Attorney email | u********@*****.com |
| Correspondent email | 2 emails |
| Correspondent address | Princeton, NEW |