Wednesday, July 8, 2026

Patent intelligence · US

US 9339491

Use of a pyrazole derivative in the treatment of acute exacerbations of chronic obstructive pulmonary disease

granted A61KA61K31/415A61K9/0053A61K9/20
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 10
Applicant portfolio 18
Patent details — US 9339491
Jurisdiction
US
Status
granted
Grant date
May 17, 2016
Expiration
May 12, 2036
Claims
11
CPC classes
A61K, A61K31/415, A61K9/0053, A61K9/20
View on Google Patents ↗

Quick answer

US 9339491 (Use of a pyrazole derivative in the treatment of acute exacerbations of chronic obstructive pulmonary disease) is held by MEREO BIOPHARMA 1 LIMITED. Status: granted. Granted May 17, 2016. Expires May 12, 2036 (10 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
11
CPC classes
A61K, A61K31/415, A61K9/0053, A61K9/20, A61P, A61P11/00

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Frequently asked questions

What is US patent 9339491?

US 9339491 (Use of a pyrazole derivative in the treatment of acute exacerbations of chronic obstructive pulmonary disease) is held by MEREO BIOPHARMA 1 LIMITED. Status: granted. Granted May 17, 2016. Expires May 12, 2036 (10 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9339491?

MEREO BIOPHARMA 1 LIMITED is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 18 pharmaceutical patents for this assignee.

When does US 9339491 expire?

Our index shows an expiration date of May 12, 2036 (10 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.