Wednesday, June 10, 2026
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Intelligence · Patents

Expiring patents (≤24 months)

Patent cliff watchlist — pharmaceutical patents approaching loss of exclusivity.

Patents
1,253

Quick answer

1,253 pharmaceutical patents in our index expire within the next 24 months. Use year facets below for annual patent-cliff planning linked to company and drug profiles.

  1. EP 1926473

    ANTIMIKROBIELLE ZUBEREITUNGEN MIT EINEM IN LIPOSOMEN VERKAPSELTEN GEHALT AN OCTENIDINDIHYDROCHLORID

    AIR LIQUIDE SANTE INT [FR] · Granted Wed Jun 04 2008 00:00:00 GMT+0000 (Coordinated Universal Time) · Expires Tue May 30 2028 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted

  2. US 7384623

    High energy phototherapeutic agents

    Provectus Pharmatech, Inc. · Granted Tue Jun 10 2008 00:00:00 GMT+0000 (Coordinated Universal Time) · Expires Mon Jun 05 2028 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted

  3. US 7384909

    Anti-viral treatment methods using phosphatidylethanolamine-binding peptides linked to anti-viral agents

    The Board of Regents of the University of Texas System · Granted Tue Jun 10 2008 00:00:00 GMT+0000 (Coordinated Universal Time) · Expires Mon Jun 05 2028 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted

  4. US 7384921

    Polymorphic forms of 6-11 bicyclic ketolide derivatives

    Enanta Pharmaceuticals, Inc. · Granted Tue Jun 10 2008 00:00:00 GMT+0000 (Coordinated Universal Time) · Expires Mon Jun 05 2028 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted

  5. US 7384978

    Compounds and methods for delivery of prostacyclin analogs

    United Therapeutics Corporation · Granted Tue Jun 10 2008 00:00:00 GMT+0000 (Coordinated Universal Time) · Expires Mon Jun 05 2028 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted

Frequently asked questions

What is a patent cliff?

A patent cliff is when key pharmaceutical patents expire, opening markets to generics or biosimilars. This hub lists USPTO patents with approaching expiration dates.

Are expiration dates estimates?

Expiration dates derive from USPTO PatentsView grant dates and term estimates. Confirm with Orange Book, patent counsel, and USPTO records before investment decisions.

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