Wednesday, July 8, 2026

Patent intelligence · US

US 9554987

Methods and formulations for treating sialic acid deficiencies

granted A61KA61K31/335A61K31/35A61K31/7012
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 11
Applicant portfolio 23
Patent details — US 9554987
Jurisdiction
US
Status
granted
Grant date
Jan 31, 2017
Expiration
Jan 26, 2037
Claims
22
CPC classes
A61K, A61K31/335, A61K31/35, A61K31/7012
View on Google Patents ↗

Quick answer

US 9554987 (Methods and formulations for treating sialic acid deficiencies) is held by Ultragenyx Pharmaceutical Inc.. Status: granted. Granted Jan 31, 2017. Expires Jan 26, 2037 (11 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
22
CPC classes
A61K, A61K31/335, A61K31/35, A61K31/7012, A61K9/0002, A61K9/0053

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Frequently asked questions

What is US patent 9554987?

US 9554987 (Methods and formulations for treating sialic acid deficiencies) is held by Ultragenyx Pharmaceutical Inc.. Status: granted. Granted Jan 31, 2017. Expires Jan 26, 2037 (11 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9554987?

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 9554987 expire?

Our index shows an expiration date of Jan 26, 2037 (11 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.