Bill Nottingham’s father, John, and John Spirk founded the company Nottingham Spirk in 1972 after graduating from the Cleveland Institute of Art. The company develops ideas and concepts, tests products, builds prototypes, develops preproduction tooling drawings, sources manufacturing, creates packaging and markets products. And it does it all on its own. The company has worked with everyone from independent entrepreneurs to large companies and has made more than $45 billion for its clients. Nottingham Spirk prefers to hire designers and engineers from the Cleveland area. Bill Nottingham, 33, is a project manager for the firm’s Innovation Center. He spoke with Cleveland Plain Dealer PDQ’s Michael Heaton.