Spherics has built a strong intellectual property position around its drug delivery technologies and products. The company has a broad range of issued US and international patents through exclusive licenses from Brown University. These patents cover polyanhydride based bioadhesive polymers and PIN™. In addition to these issued patents, Spherics’ has filed numerous applications covering compositions of matter of its proprietary polymers (SPHEROMERS™), novel oral delivery systems (including BIOGIT™, BIOROD™ and PIN™), manufacturing methods, methods of use, formulations and product compositions.