Wednesday, July 8, 2026

Patent intelligence · US

US 9139833

Modified small interfering RNA molecules and methods of use

granted A61KA61K31/711A61K38/00A61P
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 9
Applicant portfolio 126
Patent details — US 9139833
Jurisdiction
US
Status
granted
Grant date
Sep 22, 2015
Expiration
Sep 17, 2035
Claims
18
CPC classes
A61K, A61K31/711, A61K38/00, A61P
View on Google Patents ↗

Quick answer

US 9139833 (Modified small interfering RNA molecules and methods of use) is held by Arrowhead Research Corporation. Status: granted. Granted Sep 22, 2015. Expires Sep 17, 2035 (9 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
18
CPC classes
A61K, A61K31/711, A61K38/00, A61P, A61P1/16, A61P11/00

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Frequently asked questions

What is US patent 9139833?

US 9139833 (Modified small interfering RNA molecules and methods of use) is held by Arrowhead Research Corporation. Status: granted. Granted Sep 22, 2015. Expires Sep 17, 2035 (9 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9139833?

Arrowhead Research Corporation is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 126 pharmaceutical patents for this assignee.

When does US 9139833 expire?

Our index shows an expiration date of Sep 17, 2035 (9 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.