Case studies on the use of TRIZ are difficult to acquire as many companies believe TRIZ gives them a competitive advantage and are reluctant to publicise their adoption of the method.
Various promoters of TRIZ reported that car companies Rolls-Royce,[REF] Ford, and Daimler-Chrysler, Johnson & Johnson, aeronautics companies Boeing, NASA, technology companies Hewlett Packard, Motorola, General Electric, Xerox, IBM, LG, Samsung, Intel, Procter and Gamble, Expedia and Kodak have used TRIZ methods in some projects [REF].