USPTO trademark record

NALMEFENE HCL

Live mark · Owner Purdue Pharma L.P. · Classes 5

Mark details

Owner: Purdue Pharma L.P.
Serial number: 99710822
Registration number: Not registered
Status: PUBLISHED FOR OPPOSITION
Classes: 5 (Pharmaceuticals)
Filed: 2026-03-18
Registered: —
Goods / services: Pharmaceuticals for use in the treatment of opioid overdose, opioid reversal, or opioid use disorders; Pharmaceuticals, namely, opioid antagonists; Syringes filled with pharmaceuticals for use in the…

Register data as of 2026-11-08. Records can trail live filings — check the official USPTO search for the latest status before filing.

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