Wednesday, July 8, 2026

Patent intelligence · US

US 8987308

Compounds for the treatment of Clostridium difficile-associated disease

granted A61KA61K31/4164A61K31/424A61K31/4365
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 9
Applicant portfolio 20
Patent details — US 8987308
Jurisdiction
US
Status
granted
Grant date
Mar 24, 2015
Expiration
Mar 19, 2035
Claims
15
CPC classes
A61K, A61K31/4164, A61K31/424, A61K31/4365
View on Google Patents ↗

Quick answer

US 8987308 (Compounds for the treatment of Clostridium difficile-associated disease) is held by Summit Corporation Plc. Status: granted. Granted Mar 24, 2015. Expires Mar 19, 2035 (9 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
15
CPC classes
A61K, A61K31/4164, A61K31/424, A61K31/4365, A61K31/437, A61K31/4439

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Frequently asked questions

What is US patent 8987308?

US 8987308 (Compounds for the treatment of Clostridium difficile-associated disease) is held by Summit Corporation Plc. Status: granted. Granted Mar 24, 2015. Expires Mar 19, 2035 (9 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8987308?

Summit Corporation Plc is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 20 pharmaceutical patents for this assignee.

When does US 8987308 expire?

Our index shows an expiration date of Mar 19, 2035 (9 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.