Wednesday, July 8, 2026

Patent intelligence · US

US 11957740

Complex of botulinum neurotoxin E and its binding protein as a formulation with enhanced potency

granted A61KA61K38/4893A61K8/64A61K8/99
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 18
Applicant portfolio 127
Patent details — US 11957740
Jurisdiction
US
Status
granted
Grant date
Apr 16, 2024
Expiration
Apr 11, 2044
Applicant
Prime Bio, Inc.
Claims
8
CPC classes
A61K, A61K38/4893, A61K8/64, A61K8/99
View on Google Patents ↗

Quick answer

US 11957740 (Complex of botulinum neurotoxin E and its binding protein as a formulation with enhanced potency) is held by Prime Bio, Inc.. Status: granted. Granted Apr 16, 2024. Expires Apr 11, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Applicant
Prime Bio, Inc.
Grant date
Expiration
Claims
8
CPC classes
A61K, A61K38/4893, A61K8/64, A61K8/99

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Frequently asked questions

What is US patent 11957740?

US 11957740 (Complex of botulinum neurotoxin E and its binding protein as a formulation with enhanced potency) is held by Prime Bio, Inc.. Status: granted. Granted Apr 16, 2024. Expires Apr 11, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11957740?

Prime Bio, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 127 pharmaceutical patents for this assignee.

When does US 11957740 expire?

Our index shows an expiration date of Apr 11, 2044 (18 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.