US Patent 11202764 Patch

Patent 11202764 was granted and assigned to Hisamitsu Pharmaceutical on December, 2021 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Patent Applicant

Hisamitsu Pharmaceutical

Current Assignee

Hisamitsu Pharmaceutical

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

11202764

Date of Patent

December 21, 2021

Patent Application Number

16605268

Date Filed

April 19, 2018

Patent Primary Examiner

‌

Ernst V Arnold

Patent abstract

A patch comprises a backing layer and an adhesive layer, wherein the adhesive layer contains at least one selected from the group consisting of butorphanol and pharmaceutically acceptable salts thereof, and contains a rubber-based adhesive base and a silicone-based adhesive base, and a mass ratio of the rubber-based adhesive base to the silicone-based adhesive base (the mass of the rubber-based adhesive base:the mass of silicone-based adhesive base) in the adhesive layer is 9.5:0.5 to 1.9:8.1.