Advancements in drug delivery technology are often achieved only through a substantial investment of industrial, academic, and governmental resources. Patenting these technological advancements is frequently used to recoup that investment, to create profits that are used in part to develop new or improved products, and to enhance a competitive commercial edge. Other forms of intellectual property protection, such as trade secrets, copyrights, and trademarks may also be used to further protect and exploit drug delivery processes, products, and services.