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 1225 of 1,261
  1. US 6255354

    Preparation of a pulmonary surfactant for instillation and oral application

    MSE Pharmazeutika GmbH Β· Granted Jul 3, 2001 Β· Expires Jun 28, 2021

    expired
  2. US 6255519

    Radioiodinated phospholipid ether analogs and methods of using the same

    THE REGENTS OF THE UNIVERSITY OF MICHIGAN Β· Granted Jul 3, 2001 Β· Expires Jun 28, 2021

    expired
  3. US 6255336

    Amino ceramide-like compounds and therapeutic methods of use

    THE REGENTS OF THE UNIVERSITY OF MICHIGAN Β· Granted Jul 3, 2001 Β· Expires Jun 28, 2021

    expired
  4. US 6255310

    Thiophenopyrimidines

    Neurocrine Biosciences, Inc. Β· Granted Jul 3, 2001 Β· Expires Jun 28, 2021

    expired
  5. US 6255105

    Nucleotide and deduced amino acid sequences of tumor gene Int6

    The United States of America, as represented by the Department of Health and Human Services Β· Granted Jul 3, 2001 Β· Expires Jun 28, 2021

    expired
  6. US 6255091

    Potentiating metal mediated serine protease inhibitors with cobalt or zinc ions

    The Regents of the University of California Β· Granted Jul 3, 2001 Β· Expires Jun 28, 2021

    expired
  7. US 6254873

    Inactivated dengue virus vaccine

    The United States of America as represented by the Secretary of the Army Β· Granted Jul 3, 2001 Β· Expires Jun 28, 2021

    expired
  8. US 6254869

    Cryptopain vaccines, antibodies, proteins, peptides, DNA and RNA for prophylaxis, treatment and diagnosis and for detection of cryptosporidium species

    The Regents of the University of California Β· Granted Jul 3, 2001 Β· Expires Jun 28, 2021

    expired
  9. US 6255289

    Gene delivery by secretory gland expression

    The Regents of the University of California Β· Granted Jul 3, 2001 Β· Expires Jun 28, 2021

    expired
  10. US 6254865

    Method of treating huntington's disease using HNT neurons

    The Regents of the University of Technology Office of Technology Transfer Β· Granted Jul 3, 2001 Β· Expires Jun 28, 2021

    expired
  11. US 6255345

    GABA and L-glutamic acid analogs for antiseizure treatment

    Northwestern University Β· Granted Jul 3, 2001 Β· Expires Jun 28, 2021

    expired
  12. US 6254867

    Human monoclonal antibodies to the hepatitis B surface antigen

    XTL BIOPHARMACEUTICALS LTD. Β· Granted Jul 3, 2001 Β· Expires Jun 28, 2021

    expired
  13. US 6252093

    Total synthesis of antitumor acylfulvenes

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

    expired
  14. US 6251878

    Inhibition of UV-induced immune suppression and interleukin-10 production by cytoprotective tamarind oligosaccharides

    The Board of Regents of the University of Texas System Β· Granted Jun 26, 2001 Β· Expires Jun 21, 2021

    expired
  15. 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 Β· Granted Jun 26, 2001 Β· Expires Jun 21, 2021

    expired
  16. US 6251924

    Pharmaceutical composition

    Takeda Chemical Industries Ltd. Β· Granted Jun 26, 2001 Β· Expires Jun 21, 2021

    expired
  17. US 6251861

    Treatment of cerebral infarction using cyclic hexapeptides

    Takeda Chemical Industries Ltd. Β· Granted Jun 26, 2001 Β· Expires Jun 21, 2021

    expired
  18. US 6251858

    Derivatives of oligosides, their process of preparation and their applications

    I.D.M. Immuno-Designed Molecules Β· Granted Jun 26, 2001 Β· Expires Jun 21, 2021

    expired
  19. US 6251396

    Methods for treatment of multiple sclerosis using peptide analogs of human myelin basic protein

    Neurocrine Biosciences, Inc. Β· Granted Jun 26, 2001 Β· Expires Jun 21, 2021

    expired
  20. US 6251362

    Method of establishing the optimal radiation dose

    THE REGENTS OF THE UNIVERSITY OF MICHIGAN Β· Granted Jun 26, 2001 Β· Expires Jun 21, 2021

    expired
  21. US 6251871

    P16 expression constructs and their application in cancer therapy

    The Board of Regents of the University of Texas System Β· Granted Jun 26, 2001 Β· Expires Jun 21, 2021

    expired
  22. US 6251926

    Oxyiminoalkanoic acid derivatives with hypoglycemic and hypolipidemic activity

    Takeda Chemical Industries Ltd. Β· Granted Jun 26, 2001 Β· Expires Jun 21, 2021

    expired
  23. US 6248791

    Stimulating the differentiation of preadipocytic cells and therapies based thereon

    Centre International de Recherches Dermatalogiques Galderma (C.I.R.D.) Galderma Β· Granted Jun 19, 2001 Β· Expires Jun 14, 2021

    expired
  24. US 6248749

    Use of inhibitors of the activity of retinoic acid for treating sensit ive skin and/or acute damage induced by UV radiation

    Centre International de Recherches Dermatalogiques Galderma (C.I.R.D.) Galderma Β· Granted Jun 19, 2001 Β· Expires Jun 14, 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.