Wednesday, July 8, 2026

Patent intelligence · US

US 11981741

Humanized anti-CD45 antibodies

granted A61KA61K51/1027A61K51/1069A61K51/1096
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 18
Applicant portfolio 20
Patent details — US 11981741
Jurisdiction
US
Status
granted
Grant date
May 14, 2024
Expiration
May 9, 2044
Claims
11
CPC classes
A61K, A61K51/1027, A61K51/1069, A61K51/1096
View on Google Patents ↗

Quick answer

US 11981741 (Humanized anti-CD45 antibodies) is held by Actinium Phamaceuticals, Inc.. Status: granted. Granted May 14, 2024. Expires May 9, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
11
CPC classes
A61K, A61K51/1027, A61K51/1069, A61K51/1096

More from Actinium Phamaceuticals, Inc.

Related pharmaceutical patents in our USPTO index.

  1. US 12410249

    Low dose antibody-based methods for treating hematologic malignancies

    Actinium Phamaceuticals, Inc. · Expires Sep 4, 2045

    granted
  2. US 12133849

    Method for treating cancer using a BCL-2 inhibitor in conjunction with an alpha- emitting radioimmunotherapeutic

    Actinium Phamaceuticals, Inc. · Expires Oct 31, 2044

    granted
  3. US 12083192

    Methods for treatment of patients with myelodysplastic syndromes

    Actinium Phamaceuticals, Inc. · Expires Sep 5, 2044

    granted
  4. US 11975081

    Bifunctional chelators and conjugates

    Actinium Phamaceuticals, Inc. · Expires May 2, 2044

    granted
  5. US 11964948

    Bifunctional chelators and conjugates

    Actinium Phamaceuticals, Inc. · Expires Apr 18, 2044

    granted
  6. US 11912780

    Anti-CD45-based conditioning methods and uses thereof in conjunction with gene-edited cell-based therapies

    Actinium Phamaceuticals, Inc. · Expires Feb 22, 2044

    granted
  7. US 11844799

    Method for treating cancer using a BCL-2 inhibitor in conjunction with an alpha-emitting radioimmunotherapeutic

    Actinium Phamaceuticals, Inc. · Expires Dec 14, 2043

    granted

Frequently asked questions

What is US patent 11981741?

US 11981741 (Humanized anti-CD45 antibodies) is held by Actinium Phamaceuticals, Inc.. Status: granted. Granted May 14, 2024. Expires May 9, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11981741?

Actinium Phamaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 20 pharmaceutical patents for this assignee.

When does US 11981741 expire?

Our index shows an expiration date of May 9, 2044 (18 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.