Wednesday, July 8, 2026

Patent intelligence · US

US 11147773

Chloroquine gel and preparation method and application thereof

granted A61KA61K31/4706A61K9/0034A61K9/06
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 15
Applicant portfolio 21
Related coverage 6
Patent details — US 11147773

Quick answer

US 11147773 (Chloroquine gel and preparation method and application thereof) is held by GUANGZHOU HYBRIBIO BIOTECH LTD.. Status: granted. Granted Oct 19, 2021. Expires Oct 14, 2041 (15 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
4
CPC classes
A61K, A61K31/4706, A61K9/0034, A61K9/06, A61K9/5161, A61P

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Frequently asked questions

What is US patent 11147773?

US 11147773 (Chloroquine gel and preparation method and application thereof) is held by GUANGZHOU HYBRIBIO BIOTECH LTD.. Status: granted. Granted Oct 19, 2021. Expires Oct 14, 2041 (15 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11147773?

GUANGZHOU HYBRIBIO BIOTECH LTD. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 21 pharmaceutical patents for this assignee.

When does US 11147773 expire?

Our index shows an expiration date of Oct 14, 2041 (15 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.