Wednesday, July 8, 2026

Patent intelligence · US

US 9181577

Treatment of chronic pelvic pain syndrome

granted A61KA61K2039/505A61K31/341A61K31/352
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 9
Applicant portfolio 595
Patent details — US 9181577
Jurisdiction
US
Status
granted
Grant date
Nov 10, 2015
Expiration
Nov 5, 2035
Claims
5
CPC classes
A61K, A61K2039/505, A61K31/341, A61K31/352
View on Google Patents ↗

Quick answer

US 9181577 (Treatment of chronic pelvic pain syndrome) is held by Northwestern University. Status: granted. Granted Nov 10, 2015. Expires Nov 5, 2035 (9 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
5
CPC classes
A61K, A61K2039/505, A61K31/341, A61K31/352, A61K31/495, A61K39/395

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Frequently asked questions

What is US patent 9181577?

US 9181577 (Treatment of chronic pelvic pain syndrome) is held by Northwestern University. Status: granted. Granted Nov 10, 2015. Expires Nov 5, 2035 (9 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9181577?

Northwestern University is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 595 pharmaceutical patents for this assignee.

When does US 9181577 expire?

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