Wednesday, June 10, 2026

Patent intelligence · US

US 10646555

Compositions and methods relating to argininosuccinate synthetase

granted A61KA61K38/45A61K38/53A61K47/60
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 14
Applicant portfolio 8,292
Patent details — US 10646555
Jurisdiction
US
Status
granted
Grant date
May 12, 2020
Expiration
May 7, 2040
Applicant
BioRegency, Inc.
Claims
12
CPC classes
A61K, A61K38/45, A61K38/53, A61K47/60
View on Google Patents ↗

Quick answer

US 10646555 (Compositions and methods relating to argininosuccinate synthetase) is held by BioRegency, Inc.. Status: granted. Granted May 12, 2020. Expires May 7, 2040 (14 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Applicant
BioRegency, Inc.
Grant date
Expiration
Claims
12
CPC classes
A61K, A61K38/45, A61K38/53, A61K47/60, A61P, A61P31/04

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Frequently asked questions

What is US patent 10646555?

US 10646555 (Compositions and methods relating to argininosuccinate synthetase) is held by BioRegency, Inc.. Status: granted. Granted May 12, 2020. Expires May 7, 2040 (14 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 10646555?

BioRegency, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 8,292 pharmaceutical patents for this assignee.

When does US 10646555 expire?

Our index shows an expiration date of May 7, 2040 (14 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.