What does the 1961 naloxone patent cover?
Naloxone (marketed later as Narcan) is an opioid antagonist. A widely cited early patent from the early period of naloxone’s development is associated with the compound’s synthesis and related pharmaceutical compositions. However, “Google patents naloxone 1961 patent” is ambiguous: multiple patent publications and records can match naloxone-related work from around 1961, and the exact document depends on the applicant/assignee and the inventor names shown on Google Patents.
How do I find the exact 1961 naloxone patent on Google Patents?
On Google Patents, you can narrow to the right record by using the combination of these filters/queries:
- Search keywords: naloxone, “oxymorphone antagonist,” opioid antagonist, or the chemical name used in the record.
- Limit by date (publication year): 1961.
- Add an inventor or assignee if you can find it from a citation you trust (papers, product label references, or older patent lists).
- Use structure-like terms only if the record uses uncommon naming; many older chemical patents differ in how they label structures.
If you share any extra detail (inventor name, applicant/assignee, or the patent number you see in a citation), I can help pinpoint the exact Google Patents record and summarize what it claims.
Is the “1961 patent” the one that led to Narcan, or an earlier discovery?
Naloxone’s earliest patent filings and later commercialization are often confused because:
- Early patents may describe the compound and its pharmacology or preparation.
- Later patents may cover specific formulations, dosing, manufacturing improvements, or commercial branding for an emergency-use product.
A single “1961 patent” typically will not contain all details needed for modern nasal/auto-injector products, which came later.
Why multiple Google Patents results can show up for naloxone around 1961
Google Patents can return several entries because naloxone-related work may appear across:
- Different publication types (application vs. granted patent).
- Different jurisdictions (US vs. EP vs. other countries) with different publication years.
- Continuations or related filings by the same group (same inventors, nearby dates).
If you want, I can identify the exact record you mean
Reply with one of the following and I’ll match it to the correct 1961 Google Patents entry and describe what it covers:
- The patent number (e.g., USxxxxxxx)
- The inventor name(s)
- The assignee/company name
- A link or screenshot text from the Google Patents page