Wednesday, June 10, 2026

Patent directory · USPTO A61K / A61P

Patents matching “natural”

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

Matches 91
Index total 30,257
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This filtered view shows 91 pharmaceutical patents matching "natural" in our USPTO PatentsView index (CPC A61K/A61P). Search matches patent number, title, applicant, and CPC classification codes.

Patent results

91 results for “natural” · 30,257 patents in full index Clear search

  1. US 7893224

    Oligonucleotides comprising a ligand tethered to a modified or non-natural nucleobase

    Alnylam Pharmaceuticals, Inc. · Granted Feb 22, 2011 · Expires Feb 17, 2031

    granted
  2. US 7842667

    Matrix composed of a naturally-occurring protein backbone cross linked by a synthetic polymer and methods of generating and using same

    REGENTIS BIOMATERIALS LTD. · Granted Nov 30, 2010 · Expires Nov 25, 2030

    granted
  3. US 7772387

    Oligonucleotides comprising a modified or non-natural nucleobase

    Alnylam Pharmaceuticals, Inc. · Granted Aug 10, 2010 · Expires Aug 5, 2030

    granted
  4. US 7638300

    In vivo incorporation of unnatural amino acids

    The Regents of the University of California · Granted Dec 29, 2009 · Expires Dec 24, 2029

    granted
  5. US 7632932

    Oligonucleotides comprising a ligand tethered to a modified or non-natural nucleobase

    Alnylam Pharmaceuticals, Inc. · Granted Dec 15, 2009 · Expires Dec 10, 2029

    granted
  6. US 7579451

    Oligonucleotides comprising a modified or non-natural nucleobase

    Alnylam Pharmaceuticals, Inc. · Granted Aug 25, 2009 · Expires Aug 20, 2029

    granted
  7. US 7368275

    In vivo incorporation of unnatural amino acids

    The Regents of the University of California · Granted May 6, 2008 · Expires May 1, 2028

    granted
  8. US 7045337

    In vivo incorporation of unnatural amino acids

    The Regents of the University of California · Granted May 16, 2006 · Expires May 11, 2026

    expired
  9. US 6638543

    Use of natural EGFR inhibitors to prevent side effects due to retinoid therapy, soaps, and other stimuli that activate the epidermal growth factor receptor

    THE REGENTS OF THE UNIVERSITY OF MICHIGAN · Granted Oct 28, 2003 · Expires Oct 23, 2023

    expired
  10. US 6458766

    Halovir, an antiviral marine natural product, and derivatives thereof

    The Regents of the University of California · Granted Oct 1, 2002 · Expires Sep 26, 2022

    expired
  11. US 6433144

    Compositions of highly-purified natural mixtures of type I Interferon derived from leukocytes and methods

    Airgain, Inc. · Granted Aug 13, 2002 · Expires Aug 8, 2022

    expired
  12. US 6432395

    Cleaning composition containing naturally-derived components

    Cogent Environmental Solutions Ltd. · Granted Aug 13, 2002 · Expires Aug 8, 2022

    expired
  13. US 6375946

    Enhanced activation of natural killer cells using an NK cell activator and a hydrogen peroxide scavenger or inhibitor

    Maxim Pharmaceuticals, Inc. · Granted Apr 23, 2002 · Expires Apr 18, 2022

    expired
  14. US 6350589

    Compositions of highly-purified natural mixtures of type I interferon derived from leukocytes and methods

    Airgain, Inc. · Granted Feb 26, 2002 · Expires Feb 21, 2022

    expired
  15. US 6262244

    DNA and amino acid sequence specific for natural killer cells

    Regents of the University of Minnesota · Granted Jul 17, 2001 · Expires Jul 12, 2021

    expired
  16. US 6245563

    Enhanced activation of natural killer cells using an NK cell activator and hydrogen peroxide scavenger or inhibitor

    Maxim Pharmaceuticals, Inc. · Granted Jun 12, 2001 · Expires Jun 7, 2021

    expired
  17. US 6143304

    Enhanced yield of podophyllotoxin from natural products through in situ conversion methods

    The United States of America, as represented by the Secretary of Agriculture · Granted Nov 7, 2000 · Expires Nov 2, 2020

    expired
  18. US 6071509

    Enhanced activation of natural killer cells using an NK cell activator and a hydrogen peroxide scavenger or inhibitor

    Maxim Pharmaceuticals, Inc. · Granted Jun 6, 2000 · Expires Jun 1, 2020

    expired
  19. US 6069146

    Halimide, a cytotoxic marine natural product, and derivatives thereof

    The Regents of the University of California · Granted May 30, 2000 · Expires May 25, 2020

    expired