Wednesday, June 10, 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 1256 of 1,261
  1. US 6045807

    Method for production of neuroblasts

    The Regents of the University of California Β· Granted Apr 4, 2000 Β· Expires Mar 30, 2020

    expired
  2. US 6045830

    Method of production of sustained-release preparation

    Takeda Chemical Industries Ltd. Β· Granted Apr 4, 2000 Β· Expires Mar 30, 2020

    expired
  3. US 6046241

    .beta.-alethine as anti-tumor agent

    The Regents of the University of New Mexico Β· Granted Apr 4, 2000 Β· Expires Mar 30, 2020

    expired
  4. US 6045802

    Enhanced immune response to an antigen by a composition of a recombinant virus expressing the antigen with a recombinant virus expressing an immunostimulatory molecule

    The United States of America as Represented by the Secretary of the Department of Health and Human Services Β· Granted Apr 4, 2000 Β· Expires Mar 30, 2020

    expired
  5. US 6044981

    Microfabricated filter with specially constructed channel walls, and containment well and capsule constructed with such filters

    The Regents of the University of California Β· Granted Apr 4, 2000 Β· Expires Mar 30, 2020

    expired
  6. US 6046220

    Propynyl or dienyl biaromatic compounds

    Centre International de Recherches Dermatalogiques Galderma (C.I.R.D.) Galderma Β· Granted Apr 4, 2000 Β· Expires Mar 30, 2020

    expired
  7. US 6046169

    Inhibitors of factor XA

    COR Therapeutics, Inc. Β· Granted Apr 4, 2000 Β· Expires Mar 30, 2020

    expired
  8. US 6046228

    Anti-viral pharmaceutical compositions containing saturated 1,2-dithiaheterocyclic compounds and uses thereof

    The United States of America, as represented by the Department of Health and Human Services Β· Granted Apr 4, 2000 Β· Expires Mar 30, 2020

    expired
  9. US 6046200

    Compositions having neuroprotective and analgesic activity

    The United States of America, as represented by the Department of Health and Human Services Β· Granted Apr 4, 2000 Β· Expires Mar 30, 2020

    expired
  10. US 6045815

    Parenteral pimaricin as treatment of systemic infections

    The Board of Regents of the University of Texas System Β· Granted Apr 4, 2000 Β· Expires Mar 30, 2020

    expired
  11. US 6045789

    Bystander effect tumoricidal therapy by expressing an HSV-tk gene

    The United States of America as Represented by the Secretary of the Department of Health and Human Services Β· Granted Apr 4, 2000 Β· Expires Mar 30, 2020

    expired
  12. US 6043223

    Enhanced opening of abnormal brain tissue capillaries

    The Regents of the University of California Β· Granted Mar 28, 2000 Β· Expires Mar 23, 2020

    expired
  13. HU P9903308

    GRANULS FOR THE PREPARATION OF FAST-DISINTEGRATING AND FAST-DISSOLVING COMPOSITIONS CONTAINING A HIGH AMOUNT OF DRUG

    ASTELLAS PHARMA EUROP B V [NL] Β· Granted Mar 28, 2000 Β· Expires Mar 23, 2020

    expired
  14. US 6043212

    Recombinant C140 receptor, its agonists and antagonists, and nucleic acids encoding the receptor

    COR Therapeutics, Inc. Β· Granted Mar 28, 2000 Β· Expires Mar 23, 2020

    expired
  15. US 6043390

    Pentaerythritol lipid derivatives and nucleic-acid complexes

    The Regents of the University of California Β· Granted Mar 28, 2000 Β· Expires Mar 23, 2020

    expired
  16. US 6043225

    Diagnosis and treatment of arterial chlamydial granuloma

    The Board of Regents of the University of Washington Β· Granted Mar 28, 2000 Β· Expires Mar 23, 2020

    expired
  17. US 6043345

    IgE isoforms and methods of use

    The Regents of the University of California Β· Granted Mar 28, 2000 Β· Expires Mar 23, 2020

    expired
  18. US 6043062

    Constitutively active phosphatidylinositol 3-kinase and uses thereof

    The Regents of the University of California Β· Granted Mar 28, 2000 Β· Expires Mar 23, 2020

    expired
  19. US 6042829

    Biotherapy of cancer by targeting TP-3/P80

    Regents of the University of Minnesota Β· Granted Mar 28, 2000 Β· Expires Mar 23, 2020

    expired
  20. US 6042846

    Liposomal phosphodiester, phosphorothioate, and p-ethoxy oligonucleotides

    The Board of Regents of the University of Texas System Β· Granted Mar 28, 2000 Β· Expires Mar 23, 2020

    expired
  21. US 6042833

    Cellular internalization of pIgR stalk and associated ligands

    The Regents of the University of California Β· Granted Mar 28, 2000 Β· Expires Mar 23, 2020

    expired
  22. US 6042610

    Meniscal augmentation device

    ReGen Biologics, Inc. Β· Granted Mar 28, 2000 Β· Expires Mar 23, 2020

    expired
  23. US 6043082

    Regulated transcription of targeted genes and other biological events

    Board of Regents of the Leland Stanford Jr Univ Β· Granted Mar 28, 2000 Β· Expires Mar 23, 2020

    expired
  24. US 6039957

    Oligomeric HIV-1 envelope glycoproteins

    The United States of America as Represented by the Secretary of the Department of Health and Human Services Β· Granted Mar 21, 2000 Β· Expires Mar 16, 2020

    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.