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US Patent 9271944 Ketoprofen-containing aqueous adhesive skin patch

Patent 9271944 was granted and assigned to Teikoku Seiyaku on March, 2016 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors

Is a

Patent

Patent attributes

Current Assignee

Teikoku Seiyaku

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

92719440

Patent Inventor Names

Kazuha Tani0

Date of Patent

March 1, 2016

Patent Application Number

135839400

Date Filed

March 11, 2011

Patent Primary Examiner

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Sreeni Padmanabhan

Patent abstract

Provided is a water-based patch that contains ketoprofen as an active ingredient, provides high transdermal absorbability of the ketoprofen, and has high safety and high storage stability. The water-based patch contains the ketoprofen, an amine, and polyethylene glycol. In the water-based patch, the added amount of the ketoprofen in a paste is 0.1 to 5% by weight, the added amount of the amine in the paste is 0.5 to 10% by weight, and the added amount of the polyethylene glycol in the paste is 5 to 30% by weight. Particularly, in the water-based patch, diisopropanolamine is used as the amine.