NOVATO, Calif., July 30, /PRNewswire-FirstCall/ -- BioMarin Pharmaceutical Inc. (Nasdaq: BMRN - News) announced today that the United States Patent Office has issued patents covering stable tablet formulation and the approved once daily dosing regimen for Kuvan® (sapropterin dihydrochloride) for the treatment of phenylketonuria (PKU). The patent for stable tablet formulation expires in 2025, and the patent for the once daily dosing regimen expires in 2024.