Friday, July 10, 2026

Patent directory · USPTO A61K / A61P

Patents matching “antagonist”

678 pharma patents match "antagonist" in our USPTO index (A61K/A61P) — applicant, grant date, expiration, and drug links.

Matches 678
Index total 30,257
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This filtered view shows 678 pharmaceutical patents matching "antagonist" in our USPTO PatentsView index (CPC A61K/A61P). Search matches patent number, title, applicant, and CPC classification codes.

Patent results

678 results for “antagonist” · 30,257 patents in full index Clear search

  1. US 6562978

    Cyclic amine compounds as CCR5 antagonists

    Takeda Chemical Industries Ltd. · Granted May 13, 2003 · Expires May 8, 2023

    expired
  2. RU 2203884

    RETINOID COMPOUNDS (VARIANTS), COMPOSITION, METHOD FOR ASSAY OF RETINOID HORMONE ANTAGONISTS, METHOD OF TREATMENT AND INTERMEDIATE SUBSTANCES

    ALLERGEN SEJLZ INK [US] · Granted May 10, 2003 · Expires May 5, 2023

    expired
  3. US 6551989

    Preventing airway mucus production by administration of EGF-R antagonists

    The Regents of the University of California · Granted Apr 22, 2003 · Expires Apr 17, 2023

    expired
  4. EP 1297826

    Pharmazeutische Zusammensetzung zur nasalen Verabreichung enthaltend einen NK-2 Antagonisten

    MENARINI RICERCHE SPA [IT] · Granted Apr 2, 2003 · Expires Mar 28, 2023

    expired
  5. US 6541469

    CRF receptor antagonists and methods relating thereto

    Neurocrine Biosciences, Inc. · Granted Apr 1, 2003 · Expires Mar 27, 2023

    expired
  6. US 6537998

    Gonadotropin-releasing hormone receptor antagonists and methods relating thereto

    Neurocrine Biosciences, Inc. · Granted Mar 25, 2003 · Expires Mar 20, 2023

    expired
  7. US 6531475

    CRF receptor antagonists and methods relating thereto

    Neurocrine Biosciences, Inc. · Granted Mar 11, 2003 · Expires Mar 6, 2023

    expired
  8. US 6525062

    Method of treating pain using nalbuphine and opioid antagonists

    The Regents of the University of California · Granted Feb 25, 2003 · Expires Feb 20, 2023

    expired
  9. US 6514982

    CRF receptor antagonists and methods relating thereto

    Neurocrine Biosciences, Inc. · Granted Feb 4, 2003 · Expires Jan 30, 2023

    expired
  10. US 6511811

    Protein kinase C antagonist related to insulin receptor

    The Regents of the University of California · Granted Jan 28, 2003 · Expires Jan 23, 2023

    expired
  11. US 6500839

    CRF receptor antagonists and methods relating thereto

    Neurocrine Biosciences, Inc. · Granted Dec 31, 2002 · Expires Dec 26, 2022

    expired
  12. US 6472179

    Receptor based antagonists and methods of making and using

    REGENERON PHARMACEUTICALS, INC. · Granted Oct 29, 2002 · Expires Oct 24, 2022

    expired
  13. US 6440960

    CRF receptor antagonists and methods relating thereto

    Neurocrine Biosciences, Inc. · Granted Aug 27, 2002 · Expires Aug 22, 2022

    expired
  14. US 6436966

    Adenosine A3 receptor antagonists

    Takeda Chemical Ind., Ltd. · Granted Aug 20, 2002 · Expires Aug 15, 2022

    expired
  15. US 6368593

    Enhanced immunogenic cell populations prepared using H2 receptor antagonists

    The Regents of the University of California · Granted Apr 9, 2002 · Expires Apr 4, 2022

    expired
  16. US 6348466

    CRF receptor antagonists and methods relating thereto

    Neurocrine Biosciences, Inc. · Granted Feb 19, 2002 · Expires Feb 14, 2022

    expired
  17. US 6262064

    Octahydrobenzo[f]quinoline-based receptor agonists and antagonists

    State of Rhode Island and Providence Plantations · Granted Jul 17, 2001 · Expires Jul 12, 2021

    expired
  18. US 6251903

    Alkyl, azido, alkoxy, and fluoro-substituted and fused quinoxalinediones and the use thereof as glycine receptor antagonist

    The Regents of the University of California · Granted Jun 26, 2001 · Expires Jun 21, 2021

    expired
  19. US 6221861

    Reducing pyrophosphate deposition with calcium antagonists

    The Regents of the University of California · Granted Apr 24, 2001 · Expires Apr 19, 2021

    expired
  20. US 6211165

    Methods and compositions for reducing ischemic injury of the heart by administering adenosine receptor agonists and antagonists

    The United States of America, as represented by the Department of Health and Human Services · Granted Apr 3, 2001 · Expires Mar 29, 2021

    expired
  21. US 6211195

    CRF antagonistic thiophenopyridines

    Neurocrine Biosciences, Inc. · Granted Apr 3, 2001 · Expires Mar 29, 2021

    expired
  22. US 6150325

    Bicyclic tachykinins antagonists, preparation thereof and their use in pharmaceutical compositions

    MENARINI FARMA IND [IT] · Granted Nov 21, 2000 · Expires Nov 16, 2020

    expired
  23. US 6147075

    Alkyl, azido, alkoxy and fluoro-substituted and fused quinoxalinediones and the use thereof as glycine receptor antagonist

    The Regents of the University of California · Granted Nov 14, 2000 · Expires Nov 9, 2020

    expired
  24. US 6136781

    LH-RH receptor antagonists

    Takeda Chemical Industries Ltd. · Granted Oct 24, 2000 · Expires Oct 19, 2020

    expired