If that's the case, you should definitely seek permission from Ganz. Speak to an intellectual property attorney to determine the appropriate course of action for you; from there, your attorney may be the one to contact Ganz's counsel to discuss the situation.
Nina L. Kaufman, Esq. is an award-winning New York City attorney, edutainer and author. Under her Ask The Business Lawyer brand, she reaches thousands of entrepreneurs and small business owners with her legal services, professional speaking, information products, and LexAppeal weekly ezine. She also writes the Making It Legal blog.