Wednesday, July 8, 2026

Patent intelligence · US

US 8646246

Method of preparing a composition in blister packages

granted A61KA61K9/0056
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 8
Applicant portfolio 36
Patent details — US 8646246

Quick answer

US 8646246 (Method of preparing a composition in blister packages) is held by Quantum Hi-Tech (Beijing) Research Institute. Status: granted. Granted Feb 11, 2014. Expires Feb 6, 2034 (8 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
11
CPC classes
A61K, A61K9/0056

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Frequently asked questions

What is US patent 8646246?

US 8646246 (Method of preparing a composition in blister packages) is held by Quantum Hi-Tech (Beijing) Research Institute. Status: granted. Granted Feb 11, 2014. Expires Feb 6, 2034 (8 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8646246?

Quantum Hi-Tech (Beijing) Research Institute is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 36 pharmaceutical patents for this assignee.

When does US 8646246 expire?

Our index shows an expiration date of Feb 6, 2034 (8 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.