To guarantee a higher efficiency in research and development as well as substantial returns on investment, it is essential that corporations reduce the costs incurred by R&D departments. This paper proposes an integrated process of systematic innovation for redesigning prototypes. This process integrates a technology analysis, patent design-around strategies, innovative design methods in the theory of inventive problem-solving, and rules of patent infringement judgment. It is expected that a redesign of prototypes of light guide panels by design-around strategies to avoid infringement of existing patents can be used to illustrate the integrated process.