Wednesday, July 8, 2026

Patent intelligence · US

US 9453222

Ligand-conjugated monomers

granted A61KA61K31/7088A61K31/713A61K47/54
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 10
Applicant portfolio 379
Patent details — US 9453222
Jurisdiction
US
Status
granted
Grant date
Sep 27, 2016
Expiration
Sep 22, 2036
Claims
21
CPC classes
A61K, A61K31/7088, A61K31/713, A61K47/54
View on Google Patents ↗

Quick answer

US 9453222 (Ligand-conjugated monomers) is held by Alnylam Pharmaceuticals, Inc.. Status: granted. Granted Sep 27, 2016. Expires Sep 22, 2036 (10 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
21
CPC classes
A61K, A61K31/7088, A61K31/713, A61K47/54, A61K47/543, A61K47/551

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Frequently asked questions

What is US patent 9453222?

US 9453222 (Ligand-conjugated monomers) is held by Alnylam Pharmaceuticals, Inc.. Status: granted. Granted Sep 27, 2016. Expires Sep 22, 2036 (10 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9453222?

Alnylam Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 379 pharmaceutical patents for this assignee.

When does US 9453222 expire?

Our index shows an expiration date of Sep 22, 2036 (10 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.