Wednesday, July 8, 2026

Patent intelligence · US

US 10385085

Crystal forms of sialic acid or salt or solvate thereof

granted A61PA61P31/12A61P31/16
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 13
Applicant portfolio 23
Patent details — US 10385085

Quick answer

US 10385085 (Crystal forms of sialic acid or salt or solvate thereof) is held by Ultragenyx Pharmaceutical Inc.. Status: granted. Granted Aug 20, 2019. Expires Aug 15, 2039 (13 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
16
CPC classes
A61P, A61P31/12, A61P31/16

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Frequently asked questions

What is US patent 10385085?

US 10385085 (Crystal forms of sialic acid or salt or solvate thereof) is held by Ultragenyx Pharmaceutical Inc.. Status: granted. Granted Aug 20, 2019. Expires Aug 15, 2039 (13 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 10385085?

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 10385085 expire?

Our index shows an expiration date of Aug 15, 2039 (13 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.