Cheng Hao, Shi Baofang, Cheng Bole and Cheng Hui. According to the query of relevant information, the patent application for Four and a Half Fen Calligraphy was made on the Patent Network in 2013 and was approved in 2014. It is recorded in the patent details that the inventors of the patent are Cheng Hao, Shi Baofang, Cheng Bole and Cheng Hui, of which Cheng Hao is the applicant.