Wednesday, June 10, 2026

Intelligence · Patents

Patents expiring in 2035

Annual patent cliff calendar for 2035 — US pharmaceutical patents by expiration date.

Patents
1,447

Quick answer

1,447 indexed pharmaceutical patents have expiration dates in 2035. Browse by soonest expiry with links to assignee companies and related drugs.

  1. US 9227933

    3-phenoxymethylpyrrolidine compounds

    Theravance Biopharma R&D IP, LLC · Granted Tue Jan 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) · Expires Mon Dec 31 2035 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted
  2. US 9226971

    N-optionally substituted aryl-2-oligomer-3-alkoxypropionamides

    Nektar Therapeutics · Granted Tue Jan 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) · Expires Mon Dec 31 2035 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted
  3. US 9227995

    Peptides

    DRUG DISCOVERY LABORATORY AS · Granted Tue Jan 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) · Expires Mon Dec 31 2035 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted
  4. US 9228002

    Leishmania vaccine using sand fly salivary immunogen

    The United States of America as Represented by the Secretary of the Department of Health and Human Services · Granted Tue Jan 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) · Expires Mon Dec 31 2035 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted
  5. US 9228007

    Recombinant human progenitor cells, engineered human thymocytes, and engineered human T cells

    The Regents of the University of California · Granted Tue Jan 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) · Expires Mon Dec 31 2035 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted
  6. US 9228171

    Regulatory B cells (tBREGS) and their use

    The United States of America, as represented by the Secretary, Department of Health and Human Services · Granted Tue Jan 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) · Expires Mon Dec 31 2035 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted
  7. US 9228053

    Polymeric alpha-hydroxy aldehyde and ketone reagents and conjugation method

    Nektar Therapeutics · Granted Tue Jan 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) · Expires Mon Dec 31 2035 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted

Frequently asked questions

How many pharma patents expire in 2035?

1,447 published patents in our USPTO index have expiration dates falling in calendar year 2035.