Thursday, June 11, 2026

Patent directory Β· USPTO A61K / A61P

Browse patents

Browse 30,257 pharma-relevant patents (US A61K/A61P) linked to tracked companies, drugs, and pipeline programs.

Patents indexed 30,257
Companies 1,769
Drugs linked 4,797

Quick answer

NovaPharmaNews indexes 30,257 US pharmaceutical patents from USPTO PatentsView (CPC A61K/A61P), cross-linked to company assignees, drug INN profiles, and pipeline programs. Search by patent number, applicant, title, or CPC code β€” or use facet hubs for expiring patents, assignees, and therapeutic areas.

Patent results

Page 1178 of 1,261
  1. US 6576764

    Synthesis and crystallization of piperazine ring-containing compounds

    TEVA PHARMACEUTICAL INDUSTRIES, LTD. Β· Granted Jun 10, 2003 Β· Expires Jun 5, 2023

    expired
  2. US 6576650

    Peripherally active anti-hyperalgesic opiates

    The Regents of the University of California Β· Granted Jun 10, 2003 Β· Expires Jun 5, 2023

    expired
  3. US 6576614

    Peptide analogs as irreversible interleukin-1&bgr; protease inhibitors

    Vertex Pharmaceuticals Incorporated Β· Granted Jun 10, 2003 Β· Expires Jun 5, 2023

    expired
  4. US 6576155

    Fluorescent ink compositions comprising functionalized fluorescent nanocrystals

    BioCrystal, Ltd. Β· Granted Jun 10, 2003 Β· Expires Jun 5, 2023

    expired
  5. US 6576262

    Methods and apparatus for particle formation

    Nektar Therapeutics Β· Granted Jun 10, 2003 Β· Expires Jun 5, 2023

    expired
  6. US 6576791

    Local anesthetic compounds and uses

    Theravance, Inc. Β· Granted Jun 10, 2003 Β· Expires Jun 5, 2023

    expired
  7. US 6573289

    Naphthalene derivatives, their production and use

    Takeda Chemical Industries Ltd. Β· Granted Jun 3, 2003 Β· Expires May 29, 2023

    expired
  8. US 6573247

    Anti-viral pyrimidine nucleoside analogues

    University College Cardiff Consultants Limited Β· Granted Jun 3, 2003 Β· Expires May 29, 2023

    expired
  9. US 6573244

    Previns as specific inhibitors and therapeutic agents for Botulinum toxin B and Tetanus neurotoxins

    The United States of America as represented by the Secretary of the Army Β· Granted Jun 3, 2003 Β· Expires May 29, 2023

    expired
  10. US 6573236

    Inhibiting MOG-antibody binding

    The Regents of the University of California Β· Granted Jun 3, 2003 Β· Expires May 29, 2023

    expired
  11. US 6573058

    Antibody to herpes virus entry receptor protein

    Northwestern University Β· Granted Jun 3, 2003 Β· Expires May 29, 2023

    expired
  12. US 6573044

    Methods of using chemical libraries to search for new kinase inhibitors

    The Regents of the University of California Β· Granted Jun 3, 2003 Β· Expires May 29, 2023

    expired
  13. US 6573062

    Method for obtaining modulators of TNF receptor releasing enzyme

    The Regents of the University of California Β· Granted Jun 3, 2003 Β· Expires May 29, 2023

    expired
  14. US 6573282

    Peripherally active anti-hyperalgesic opiates

    The Regents of the University of California Β· Granted Jun 3, 2003 Β· Expires May 29, 2023

    expired
  15. US 6573300

    Hydroxyurea treatment for spinal muscular atrophy

    China Medical College Hospital Β· Granted Jun 3, 2003 Β· Expires May 29, 2023

    expired
  16. US 6572864

    Nucleotide and deduced amino acid sequences of the envelope 1 gene of 51 isolates of hepatitis C virus and the use of reagents derived from these sequences in diagnostic methods and vaccines

    The United States of America, as represented by the Department of Health and Human Services Β· Granted Jun 3, 2003 Β· Expires May 29, 2023

    expired
  17. US 6573259

    Inhibitors of interleukin-1&bgr; converting enzyme

    Vertex Pharmaceuticals Incorporated Β· Granted Jun 3, 2003 Β· Expires May 29, 2023

    expired
  18. HU P0204410

    PYRIMIDINE-4-ONE DERIVATIVES, PROCESS FOR THEIR PREPARATION, PHARMACEUTICAL COMPOSITIONS CONTAINING THEM AND THEIR USE

    SMITHKLINE BEECHAM PLC [GB] Β· Granted May 28, 2003 Β· Expires May 23, 2023

    expired
  19. US 6569406

    Inhaleable spray dried 4-helix bundle protein powders having minimized aggregation

    Nektar Therapeutics Β· Granted May 27, 2003 Β· Expires May 22, 2023

    expired
  20. US 6569470

    Monoamine oxidase (MAO) inhibitors and uses thereof

    Regent Court Technologies, LLC Β· Granted May 27, 2003 Β· Expires May 22, 2023

    expired
  21. US 6569661

    Recombinant &agr;-L-iduronidase, methods for producing and purifying the same and methods for treating diseases caused by deficiencies thereof

    BIOMARIN PHARMACEUTICAL INC. Β· Granted May 27, 2003 Β· Expires May 22, 2023

    expired
  22. US 6569998

    Synthetic glycosulfopeptides and methods of synthesis thereof

    The Board of Regents of the University of Oklahoma Β· Granted May 27, 2003 Β· Expires May 22, 2023

    expired
  23. US 6569889

    Amino ceramide-like compounds and therapeutic methods of use

    THE REGENTS OF THE UNIVERSITY OF MICHIGAN Β· Granted May 27, 2003 Β· Expires May 22, 2023

    expired
  24. US 6569664

    Native TNF receptor releasing enzyme

    The Regents of the University of California Β· Granted May 27, 2003 Β· Expires May 22, 2023

    expired

Frequently asked questions

What patents are included in this directory?

We index 30,257 published US pharma-relevant patents filtered to CPC classes A61K and A61P, with assignee links to our company directory where a match exists.

How do I search for a patent?

Use the search box to match patent number, title, applicant name, or CPC classification (e.g. A61K). For cross-entity queries spanning news and drugs, use the global search.

How is this different from the patent intelligence dashboard?

The dashboard at /patents highlights expirations, recent grants, and assignee rankings. Browse is the full paginated directory with search β€” best for looking up a specific filing or applicant portfolio slice.