Wednesday, July 8, 2026

Patent intelligence · US

US 6827946

Compositions containing both sedative and non-sedative antihistamines

expired A61KA61K31/00A61K45/06A61K9/209
Status expired
Linked drugs 1
Pipeline programs 6
Years to expiry 0
Applicant portfolio 28
Patent details — US 6827946
Jurisdiction
US
Status
expired
Grant date
Dec 7, 2004
Expiration
Dec 2, 2024
Claims
29
CPC classes
A61K, A61K31/00, A61K45/06, A61K9/209
View on Google Patents ↗

Quick answer

US 6827946 (Compositions containing both sedative and non-sedative antihistamines) is held by Collegium Pharmaceutical, Inc.. Status: expired. Granted Dec 7, 2004. Expires Dec 2, 2024 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
29
CPC classes
A61K, A61K31/00, A61K45/06, A61K9/209, A61K9/5084, A61P

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Frequently asked questions

What is US patent 6827946?

US 6827946 (Compositions containing both sedative and non-sedative antihistamines) is held by Collegium Pharmaceutical, Inc.. Status: expired. Granted Dec 7, 2004. Expires Dec 2, 2024 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6827946?

Collegium Pharmaceutical, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 28 pharmaceutical patents for this assignee.

When does US 6827946 expire?

Our index shows an expiration date of Dec 2, 2024 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.