inventor/designers were developed in order to provide an insight into the creative process and an understanding of innovative product development. The cases provide information on the motivations of creative individuals, the sources of their ideas, their approaches to developing those ideas, their use of 2D and 3D modelling at different stages of product development, their need for domain-specific knowledge, and the value of tools such as creative thinking techniques and computer-aided design. The cases also illustrate some of the difficulties faced by British inventors and designers in commercializing innovative products.