Additional Relevant Details United States Patent and Trademark Office (USPTO) has issued a Notice of Allowance for its composition of matter patent application (U.S. Patent Application No. 15/052,186). Upon issuance, the patent will provide key intellectual property protection for RDX227675, the Company's proprietary oral, non-absorbed, potassium-binding polymer, through 2035, exclusive of any patent term extensions or adjustments that may be available. The Company has additional patent applications pending in the United Statesand internationally covering the composition and methods of using RDX227675.