Wednesday, July 8, 2026

Patent intelligence · US

US 6268383

Substituted aromatic compounds for treatment of antibiotic-resistant infections

expired A61KA61K31/137A61K31/4458
Status expired
Linked drugs 1
Pipeline programs 6
Years to expiry 0
Applicant portfolio 3,720
Patent details — US 6268383

Quick answer

US 6268383 (Substituted aromatic compounds for treatment of antibiotic-resistant infections) is held by The United States of America as represented by the Secretary of the Army. Status: expired. Granted Jul 31, 2001. Expires Jul 26, 2021 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
5
CPC classes
A61K, A61K31/137, A61K31/4458

More from The United States of America as represented by the Secretary of the Army

Related pharmaceutical patents in our USPTO index.

  1. US 12419873

    Use of JAK inhibitors in preparation of drugs for treating JAK kinase-related diseases

    ZHUHAI UNITED LABORATORIES CO., LTD. · Expires Sep 18, 2045

    granted
  2. US 12419941

    Poultry drinking water-based vaccine delivery system and method

    The United States of America, as represented by the Secretary of Agriculture · Expires Sep 18, 2045

    granted
  3. US 12415845

    Methods of producing T cell populations using hydroxycitric acid and/or a salt thereof

    The United States of America, as represented by the Secretary, Department of Health and Human Services · Expires Sep 11, 2045

    granted
  4. US 12410240

    Antibodies and methods for the diagnosis and treatment of Epstein Barr virus infection

    The United States of America, as represented by the Secretary, Department of Health and Human Services · Expires Sep 4, 2045

    granted
  5. US 12410259

    CD47 targeted therapies for the treatment of infectious disease

    The United States of America, as represented by the Secretary, Department of Health and Human Services · Expires Sep 4, 2045

    granted
  6. US 12404317

    T cell receptors recognizing MHC class II-restricted MAGE-A3

    The United States of America, as represented by the Secretary, Department of Health and Human Services · Expires Aug 28, 2045

    granted
  7. US 12397066

    Delivery of gene therapy treatments

    United States Government as represented by the Department of Veterans Affairs · Expires Aug 21, 2045

    granted
  8. US 12398123

    Chemical inhibition of the E3 ligase subunit FBXO7 confers neuroprotection and anti-inflammatory activity by stabilizing mitochondria

    United States Government as represented by the Department of Veterans Affairs · Expires Aug 21, 2045

    granted

Frequently asked questions

What is US patent 6268383?

US 6268383 (Substituted aromatic compounds for treatment of antibiotic-resistant infections) is held by The United States of America as represented by the Secretary of the Army. Status: expired. Granted Jul 31, 2001. Expires Jul 26, 2021 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6268383?

The United States of America as represented by the Secretary of the Army is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 3,720 pharmaceutical patents for this assignee.

When does US 6268383 expire?

Our index shows an expiration date of Jul 26, 2021 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.