Wednesday, July 8, 2026

Patent intelligence · US

US 8974801

Long term sustained release pharmaceutical composition containing aqueous suspension of bisphosphonate

granted A61KA61K31/663A61K33/42A61K9/0019
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 9
Applicant portfolio 15
Patent details — US 8974801
Jurisdiction
US
Status
granted
Grant date
Mar 10, 2015
Expiration
Mar 5, 2035
Claims
9
CPC classes
A61K, A61K31/663, A61K33/42, A61K9/0019
View on Google Patents ↗

Quick answer

US 8974801 (Long term sustained release pharmaceutical composition containing aqueous suspension of bisphosphonate) is held by Amphastar Pharmaceuticals, Inc.. Status: granted. Granted Mar 10, 2015. Expires Mar 5, 2035 (9 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
9
CPC classes
A61K, A61K31/663, A61K33/42, A61K9/0019, A61K9/10, A61P

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Frequently asked questions

What is US patent 8974801?

US 8974801 (Long term sustained release pharmaceutical composition containing aqueous suspension of bisphosphonate) is held by Amphastar Pharmaceuticals, Inc.. Status: granted. Granted Mar 10, 2015. Expires Mar 5, 2035 (9 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8974801?

Amphastar Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 15 pharmaceutical patents for this assignee.

When does US 8974801 expire?

Our index shows an expiration date of Mar 5, 2035 (9 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.