The patent design around method based on TRIZ

The patent design around is key to the company when launch a new product. So product development must not impinge the patent right. TRIZ is a power tool for patent analysis and innovation. The evolution patterns and routes help design to find out current technologies´ developing status and imply the next developing level of the technologies. The problem is found out with consideration of how to achieving the next generation of technology. The contradiction solving principles is the tool to help designer get primal solution for the innovation. The design solution which design around existing patents and have higher perform would construct by contradiction matrix and inventive principles. The belt conveyor is a case study and developed to improving the performance without impinging existing patent.