Wednesday, July 8, 2026

Patent intelligence · US

US 10946308

Enzymatic method for extraction and purification of phytocannabinoids

granted A61KA61K36/16A61K36/185A61K36/268
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 15
Applicant portfolio 57
Patent details — US 10946308
Jurisdiction
US
Status
granted
Grant date
Mar 16, 2021
Expiration
Mar 11, 2041
Claims
17
CPC classes
A61K, A61K36/16, A61K36/185, A61K36/268
View on Google Patents ↗

Quick answer

US 10946308 (Enzymatic method for extraction and purification of phytocannabinoids) is held by Bright Green Corporation. Status: granted. Granted Mar 16, 2021. Expires Mar 11, 2041 (15 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
17
CPC classes
A61K, A61K36/16, A61K36/185, A61K36/268, A61K36/906, A61K36/9066

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Frequently asked questions

What is US patent 10946308?

US 10946308 (Enzymatic method for extraction and purification of phytocannabinoids) is held by Bright Green Corporation. Status: granted. Granted Mar 16, 2021. Expires Mar 11, 2041 (15 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 10946308?

Bright Green Corporation is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 57 pharmaceutical patents for this assignee.

When does US 10946308 expire?

Our index shows an expiration date of Mar 11, 2041 (15 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.