Wednesday, July 8, 2026

Patent intelligence · US

US 11547670

Delayed release methylphenidate compositions

granted A61KA61K31/135A61K31/165A61K31/4045
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 16
Applicant portfolio 32
Patent details — US 11547670
Jurisdiction
US
Status
granted
Grant date
Jan 10, 2023
Expiration
Jan 5, 2043
Claims
18
CPC classes
A61K, A61K31/135, A61K31/165, A61K31/4045
View on Google Patents ↗

Quick answer

US 11547670 (Delayed release methylphenidate compositions) is held by Amneal Complex Products Research LLC. Status: granted. Granted Jan 10, 2023. Expires Jan 5, 2043 (16 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
18
CPC classes
A61K, A61K31/135, A61K31/165, A61K31/4045, A61K31/4168, A61K31/4402

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Frequently asked questions

What is US patent 11547670?

US 11547670 (Delayed release methylphenidate compositions) is held by Amneal Complex Products Research LLC. Status: granted. Granted Jan 10, 2023. Expires Jan 5, 2043 (16 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11547670?

Amneal Complex Products Research LLC is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 32 pharmaceutical patents for this assignee.

When does US 11547670 expire?

Our index shows an expiration date of Jan 5, 2043 (16 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.