Wednesday, July 8, 2026

Patent intelligence · US

US 11155803

Adenosine deaminase base editors and methods of using same to modify a nucleobase in a target sequence

granted A61PA61P43/00
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 15
Applicant portfolio 14
Related coverage 1
Patent details — US 11155803

Quick answer

US 11155803 (Adenosine deaminase base editors and methods of using same to modify a nucleobase in a target sequence) is held by Beam Therapeutics Inc.. Status: granted. Granted Oct 26, 2021. Expires Oct 21, 2041 (15 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
30
CPC classes
A61P, A61P43/00

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Frequently asked questions

What is US patent 11155803?

US 11155803 (Adenosine deaminase base editors and methods of using same to modify a nucleobase in a target sequence) is held by Beam Therapeutics Inc.. Status: granted. Granted Oct 26, 2021. Expires Oct 21, 2041 (15 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11155803?

Beam Therapeutics Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 14 pharmaceutical patents for this assignee.

When does US 11155803 expire?

Our index shows an expiration date of Oct 21, 2041 (15 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.