Wednesday, July 8, 2026

Patent intelligence · US

US 8637538

Methods for treatment of pruritis

granted A61KA61K31/485A61K9/2018A61K9/205
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 8
Applicant portfolio 7
Patent details — US 8637538
Jurisdiction
US
Status
granted
Grant date
Jan 28, 2014
Expiration
Jan 23, 2034
Claims
32
CPC classes
A61K, A61K31/485, A61K9/2018, A61K9/205
View on Google Patents ↗

Quick answer

US 8637538 (Methods for treatment of pruritis) is held by Trevi Therapeutics, Inc.. Status: granted. Granted Jan 28, 2014. Expires Jan 23, 2034 (8 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
32
CPC classes
A61K, A61K31/485, A61K9/2018, A61K9/205, A61K9/2054, A61K9/2077

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Frequently asked questions

What is US patent 8637538?

US 8637538 (Methods for treatment of pruritis) is held by Trevi Therapeutics, Inc.. Status: granted. Granted Jan 28, 2014. Expires Jan 23, 2034 (8 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8637538?

Trevi Therapeutics, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 7 pharmaceutical patents for this assignee.

When does US 8637538 expire?

Our index shows an expiration date of Jan 23, 2034 (8 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.