Wednesday, July 8, 2026

Patent intelligence · US

US 8840926

Sialic acid analogs

granted A61PA61P21/00
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 8
Applicant portfolio 23
Patent details — US 8840926

Quick answer

US 8840926 (Sialic acid analogs) is held by Ultragenyx Pharmaceutical Inc.. Status: granted. Granted Sep 23, 2014. Expires Sep 18, 2034 (8 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
21
CPC classes
A61P, A61P21/00

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Frequently asked questions

What is US patent 8840926?

US 8840926 (Sialic acid analogs) is held by Ultragenyx Pharmaceutical Inc.. Status: granted. Granted Sep 23, 2014. Expires Sep 18, 2034 (8 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8840926?

Ultragenyx Pharmaceutical Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 23 pharmaceutical patents for this assignee.

When does US 8840926 expire?

Our index shows an expiration date of Sep 18, 2034 (8 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.