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 1219 of 1,261
  1. US 6290963

    Anti-HIV compositions containing native and recombinant peptides

    The United States of America as Represented by the Secretary of the Department of Health and Human Services Β· Granted Sep 18, 2001 Β· Expires Sep 13, 2021

    expired
  2. US 6290981

    Use of nitric oxide-releasing agents to treat impotency

    The United States of America, as represented by the Department of Health and Human Services Β· Granted Sep 18, 2001 Β· Expires Sep 13, 2021

    expired
  3. US 6291429

    Clock gene and gene product

    Northwestern University Β· Granted Sep 18, 2001 Β· Expires Sep 13, 2021

    expired
  4. US 6291642

    Mammalian cell cycle protein

    The Regents of the University of California Β· Granted Sep 18, 2001 Β· Expires Sep 13, 2021

    expired
  5. US 6291207

    Herpes virus entry receptor protein

    Northwestern University Β· Granted Sep 18, 2001 Β· Expires Sep 13, 2021

    expired
  6. US 6291220

    Polynucleotides encoding phosphatidylinositol 3-kinases

    The Regents of the University of California Β· Granted Sep 18, 2001 Β· Expires Sep 13, 2021

    expired
  7. US 6291526

    GABA and L-glutamic acid analogs for antiseizure treatment

    Northwestern University Β· Granted Sep 18, 2001 Β· Expires Sep 13, 2021

    expired
  8. US 6291652

    Antibodies specific for proteins having polyglutamine expansions

    The Regents of the University of California Β· Granted Sep 18, 2001 Β· Expires Sep 13, 2021

    expired
  9. US 6291654

    Method for isolating a C3 binding protein of streptococcus pneumoniae

    Regents of the University of Minnesota Β· Granted Sep 18, 2001 Β· Expires Sep 13, 2021

    expired
  10. US 6291743

    Transgenic plants expressing mutant geminivirus AC1 or C1 genes

    The Regents of the University of California Β· Granted Sep 18, 2001 Β· Expires Sep 13, 2021

    expired
  11. US 6291431

    Methods and compositions for the treatment and prevention of Staphylococcal infections

    The Regents of the University of California Β· Granted Sep 18, 2001 Β· Expires Sep 13, 2021

    expired
  12. US 6291664

    Method of eliminating inhibitory/instability regions of mRNA

    The United States of America, as represented by the Department of Health and Human Services Β· Granted Sep 18, 2001 Β· Expires Sep 13, 2021

    expired
  13. US 6287759

    Recombinant proteins of a Pakistani strain of hepatitis E and their use in diagnostic methods and vaccines

    The United States of America, as represented by the Department of Health and Human Services Β· Granted Sep 11, 2001 Β· Expires Sep 6, 2021

    expired
  14. US 6287537

    Radioimmunotherapy of lymphoma using anti-CD20 antibodies

    THE REGENTS OF THE UNIVERSITY OF MICHIGAN Β· Granted Sep 11, 2001 Β· Expires Sep 6, 2021

    expired
  15. US 6288088

    Oxadiazoline derivative and their use as insecticides

    Takeda Chemical Industries Ltd. Β· Granted Sep 11, 2001 Β· Expires Sep 6, 2021

    expired
  16. US 6287569

    Vaccines with enhanced intracellular processing

    The Regents of the University of California Β· Granted Sep 11, 2001 Β· Expires Sep 6, 2021

    expired
  17. US 6288040

    Medicament excipient particles for tissue-specific application of a medicament

    DSS Drug Delivery Service Gesellschaft zur Forderung der Foshung In Phamazeutischer Technologi und Biopharmazie mbH Β· Granted Sep 11, 2001 Β· Expires Sep 6, 2021

    expired
  18. US 6287792

    Drug delivery of antisense oligonucleotides and peptides to tissues in vivo and to cells using avidin-biotin technology

    The Regents of the University of California Β· Granted Sep 11, 2001 Β· Expires Sep 6, 2021

    expired
  19. US 6288024

    Methods and compositions for inhibiting angiogenesis

    Northwestern University Β· Granted Sep 11, 2001 Β· Expires Sep 6, 2021

    expired
  20. US 6287590

    Peptide/lipid complex formation by co-lyophilization

    Esperion Therapeutics, Inc. Β· Granted Sep 11, 2001 Β· Expires Sep 6, 2021

    expired
  21. US 6287587

    Process for producing sustained-release preparation by in-water drying

    Takeda Chemical Industries Ltd. Β· Granted Sep 11, 2001 Β· Expires Sep 6, 2021

    expired
  22. US 6287607

    Potassium calcium citrate compositions and methods therefor

    The Board of Regents of the University of Texas System Β· Granted Sep 11, 2001 Β· Expires Sep 6, 2021

    expired
  23. US 6287575

    Vaccine against papillomatous digital dermatitis (PDD)

    The Regents of the University of California Β· Granted Sep 11, 2001 Β· Expires Sep 6, 2021

    expired
  24. US 6287562

    Methods of inhibiting the growth of cells bearing LewisY antigens using B1, B3, or B5 targeted immunoconjugates

    The United States of America, as represented by the Department of Health and Human Services Β· Granted Sep 11, 2001 Β· Expires Sep 6, 2021

    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.