CHARLOTTESVILLE, VA –August 2, 2010 – Diffusion Pharmaceuticals LLC, a clinical-stage drug-development company, today announced that the U.S. Patent and Trademark Office (USPTO) has granted it patent no. 7,759,506 entitled “Bipolar Trans Carotenoid Salts and Their Uses.” This patent includes drug formulation and use claims relating to Diffusion’s entire family of first-in-class new chemical entities. [...]