Saturday, July 11, 2026

Patent intelligence · US

US 8575123

Site-specific delivery of nucleic acids by combining targeting ligands with endosomolytic components

granted A61KA61K47/545A61K47/549A61K47/551
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 7
Applicant portfolio 308
Patent details — US 8575123
Jurisdiction
US
Status
granted
Grant date
Nov 5, 2013
Expiration
Oct 31, 2033
Claims
39
CPC classes
A61K, A61K47/545, A61K47/549, A61K47/551
View on Google Patents ↗

Quick answer

US 8575123 (Site-specific delivery of nucleic acids by combining targeting ligands with endosomolytic components) is held by Tekmira Pharmaceuticals Corporation. Status: granted. Granted Nov 5, 2013. Expires Oct 31, 2033 (7 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
39
CPC classes
A61K, A61K47/545, A61K47/549, A61K47/551, A61K47/554, A61K48/0008

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Frequently asked questions

What is US patent 8575123?

US 8575123 (Site-specific delivery of nucleic acids by combining targeting ligands with endosomolytic components) is held by Tekmira Pharmaceuticals Corporation. Status: granted. Granted Nov 5, 2013. Expires Oct 31, 2033 (7 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8575123?

Tekmira Pharmaceuticals Corporation is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 308 pharmaceutical patents for this assignee.

When does US 8575123 expire?

Our index shows an expiration date of Oct 31, 2033 (7 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.