Wednesday, July 8, 2026

Patent intelligence · US

US 9555159

Inorganically surface-modified polymers and methods for making and using them

granted A61KA61K31/7088A61K35/28A61K35/32
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 11
Applicant portfolio 8,292
Patent details — US 9555159
Jurisdiction
US
Status
granted
Grant date
Jan 31, 2017
Expiration
Jan 26, 2037
Claims
41
CPC classes
A61K, A61K31/7088, A61K35/28, A61K35/32
View on Google Patents ↗

Quick answer

US 9555159 (Inorganically surface-modified polymers and methods for making and using them) is held by The Regents of the University of California. 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
41
CPC classes
A61K, A61K31/7088, A61K35/28, A61K35/32, A61K35/545, A61K38/00

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Frequently asked questions

What is US patent 9555159?

US 9555159 (Inorganically surface-modified polymers and methods for making and using them) is held by The Regents of the University of California. Status: granted. Granted Jan 31, 2017. Expires Jan 26, 2037 (11 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9555159?

The Regents of the University of California is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 8,292 pharmaceutical patents for this assignee.

When does US 9555159 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.