De Bauer lost his temper. He personally went to the Patent Committee to explain his invention, and personally made a model and sent it to the chairman of the Committee, who personally tested it to prove whether the invention was fraudulent or effective. After the experiment, the chairman was finally persuaded and finally agreed to approve the patent application. However, at that time 10 years passed, which delayed the business opportunity of Mr. De Bauer 10 years in vain and failed to make him make a fortune on the pyramid sharpener. Due to the conservatism of the Patent Examination and Approval Committee, the invention patent with patent number 9 1304 failed to become a multinational company.