Wednesday, July 8, 2026

Patent intelligence · US

US 9994856

Method for increasing the activity of a cystic fibrosis transmembrane conductance regulator protein

granted A61KA61K31/7088A61K31/712A61K38/465
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 12
Applicant portfolio 19
Patent details — US 9994856
Jurisdiction
US
Status
granted
Grant date
Jun 12, 2018
Expiration
Jun 7, 2038
Claims
18
CPC classes
A61K, A61K31/7088, A61K31/712, A61K38/465
View on Google Patents ↗

Quick answer

US 9994856 (Method for increasing the activity of a cystic fibrosis transmembrane conductance regulator protein) is held by ProQR Therapeutics II B.V.. Status: granted. Granted Jun 12, 2018. Expires Jun 7, 2038 (12 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
18
CPC classes
A61K, A61K31/7088, A61K31/712, A61K38/465, A61K45/06, A61K9/08

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Frequently asked questions

What is US patent 9994856?

US 9994856 (Method for increasing the activity of a cystic fibrosis transmembrane conductance regulator protein) is held by ProQR Therapeutics II B.V.. Status: granted. Granted Jun 12, 2018. Expires Jun 7, 2038 (12 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9994856?

ProQR Therapeutics II B.V. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 19 pharmaceutical patents for this assignee.

When does US 9994856 expire?

Our index shows an expiration date of Jun 7, 2038 (12 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.