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 1230 of 1,261
  1. US 6218429

    Tricyclic compounds, their production and use

    Takeda Chemical Industries Ltd. Β· Granted Apr 17, 2001 Β· Expires Apr 12, 2021

    expired
  2. US 6218430

    Vitamin D3 mimics

    Ligand Pharmaceuticals Incorporated Β· Granted Apr 17, 2001 Β· Expires Apr 12, 2021

    expired
  3. US 6218372

    Methods for treating restenosis with p21

    THE REGENTS OF THE UNIVERSITY OF MICHIGAN Β· Granted Apr 17, 2001 Β· Expires Apr 12, 2021

    expired
  4. US 6217911

    sustained release non-steroidal, anti-inflammatory and lidocaine PLGA microspheres

    The United States of America as represented by the Secretary of the Army Β· Granted Apr 17, 2001 Β· Expires Apr 12, 2021

    expired
  5. US 6217871

    Antigenic epitopes with LYM-1 reactivity and uses thereof

    The Regents of the University of California Β· Granted Apr 17, 2001 Β· Expires Apr 12, 2021

    expired
  6. US 6217864

    Method for targeted degradation of intracellular proteins in vivo or ex vivo

    The Regents of the University of California Β· Granted Apr 17, 2001 Β· Expires Apr 12, 2021

    expired
  7. US 6217884

    Streptococcus pneumoniae 37-kDa surface adhesin a protein

    The United States of America, as represented by the Department of Health and Human Services Β· Granted Apr 17, 2001 Β· Expires Apr 12, 2021

    expired
  8. US 6218506

    Amyloid .beta. protein (globular assembly and uses thereof)

    Northwestern University Β· Granted Apr 17, 2001 Β· Expires Apr 12, 2021

    expired
  9. US 6218509

    LH/CG receptor, DNA and use thereof

    Takeda Chemical Industries Ltd. Β· Granted Apr 17, 2001 Β· Expires Apr 12, 2021

    expired
  10. US 6218526

    Polynucleotide encoding human netrin-1

    The Regents of the University of California Β· Granted Apr 17, 2001 Β· Expires Apr 12, 2021

    expired
  11. US 6218596

    Enhancement of musculature in non-human mammals expressing c-ski

    The United States of America, as represented by the Department of Health and Human Services Β· Granted Apr 17, 2001 Β· Expires Apr 12, 2021

    expired
  12. CN 1291100

    Cyclopentane Heptan (ene) oic acid, 2-hetero arylakenyl derivatives and therapeutic agents

    ALLERGEN SALES INC [US] Β· Granted Apr 11, 2001 Β· Expires Apr 6, 2021

    expired
  13. US 6214300

    Microencapsulation and electrostatic processing device

    The United States of America as represented by the Administrator of the National Aeronautics and Space Administration Β· Granted Apr 10, 2001 Β· Expires Apr 5, 2021

    expired
  14. US 6214848

    Pharmaceutical composition

    Takeda Chemical Industries Ltd. Β· Granted Apr 10, 2001 Β· Expires Apr 5, 2021

    expired
  15. US 6214388

    Immunoliposomes that optimize internalization into target cells

    The Regents of the University of California Β· Granted Apr 10, 2001 Β· Expires Apr 5, 2021

    expired
  16. US 6214838

    Thienodipyridine derivatives, production and use thereof

    Takeda Chemical Industries Ltd. Β· Granted Apr 10, 2001 Β· Expires Apr 5, 2021

    expired
  17. US 6214801

    Imidazo[1,2-a]pyridine C-nucleosides as antiviral agents

    THE REGENTS OF THE UNIVERSITY OF MICHIGAN Β· Granted Apr 10, 2001 Β· Expires Apr 5, 2021

    expired
  18. US 6214991

    Substituted indolealkanoic acids

    The Institute for Pharmaceutical Discovery, LLC Β· Granted Apr 10, 2001 Β· Expires Apr 5, 2021

    expired
  19. US 6214811

    Acyclovir diester derivatives

    Drug Innovation & Design, Incorporated Β· Granted Apr 10, 2001 Β· Expires Apr 5, 2021

    expired
  20. US 6214805

    RNase L activators and antisense oligonucleotides effective to treat RSV infections

    The United States of America, as represented by the Department of Health and Human Services Β· Granted Apr 10, 2001 Β· Expires Apr 5, 2021

    expired
  21. US 6214594

    Size enhanced fibrinolytic enzymes: limitations of plasma inactivation

    The Regents of the University of California Β· Granted Apr 10, 2001 Β· Expires Apr 5, 2021

    expired
  22. US 6214615

    Cloned genes for human dopamine D2 receptors and cell lines expressing same

    The United States of America, as represented by the Department of Health and Human Services Β· Granted Apr 10, 2001 Β· Expires Apr 5, 2021

    expired
  23. US 6214571

    Method for inhibiting adenylosuccinate synthetase activity in malignant methylthioadenosine phosphorylase deficient cells

    The Regents of the University of California Β· Granted Apr 10, 2001 Β· Expires Apr 5, 2021

    expired
  24. US 6214562

    Transcriptionally regualted G protein-coupled receptor

    The Regents of the University of California Β· Granted Apr 10, 2001 Β· Expires Apr 5, 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.