USPTO Trademark Application for LEYNYSO Cell Therapy
Summary
The USPTO has received an intent-to-use trademark application for the mark LEYNYSO. The application covers various cell therapy and immunotherapy preparations for cancer treatment, as well as related medical services. The filing date for this application was April 25, 2025.
What changed
The United States Patent and Trademark Office (USPTO) has received an intent-to-use trademark application (TM99155751) for the mark LEYNYSO. The application covers a range of pharmaceutical preparations, including cell therapy and immunotherapy products for cancer treatment, as well as T-cell receptors and engineered T-cell receptor therapeutics. It also includes medical services related to immunotherapy, such as harvesting and infusing a patient's white blood cells with engineered T-cell receptor therapeutics.
This filing indicates a potential new market entrant or product launch in the cell therapy and immunotherapy space. While this is a trademark application and not a regulatory approval, it signals commercial intent for these advanced medical treatments. Compliance officers in the pharmaceutical and healthcare sectors should note the scope of the proposed services and products, which may be subject to future FDA or other regulatory oversight upon commercialization.
Archived snapshot
Mar 26, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
← USPTO Trademark Applications
LEYNYSO
Intent to Use TM99155751 Kind: intenttouse Mar 24, 2026
Abstract
Cell therapy pharmaceutical preparations; immunotherapy preparations for use in cancer treatment; T-cell receptors in the nature of pharmaceutical preparations for use in cancer treatment; pharmaceutical immunotherapy preparations comprising engineered T-cell receptors for use in cancer treatment; pharmaceutical immunotherapy preparations comprising genes encoding engineered T-cell receptors for use in cancer treatment; Cell therapy medical treatment services; medical services, namely, immunotherapy services; medical services, namely, medical treatment and immune-therapy comprising harvesting a patient's white blood cells, combining white blood cells with an engineered T-cell receptor therapeutic, transducing the white blood cells with the gene encoding the engineered T-cell receptor and infusion of the transduced white blood cells back into the patient
Filing Date
2025-04-25
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