2. 1995, Li Hongtao "brushless electric excitation motor" won the gold medal in the 5th China Patent Invention Expo, and the first prize of outstanding invention in Yunnan province. It is reported that when Li Hongtao applied for a patent, she was renamed "Yang Hongjun".
In the next few years, Li Hongtao (alias "Yang Hongjun") made more inventions, and obtained three invention patents and three utility model patents. Due to Li Hongtao's significant meritorious service, he was sentenced to fixed-term imprisonment and suspended sentence, in line with the provisions of the law on commutation and commutation. In 2009, Li Hongtao was released from prison and started a new life.
4. In 2002, Li Hongtao recalled his two successful escape experiences and decided to help the prison improve its management system. Since then, the computerized prison monitoring and management system jointly developed by Li Hongtao and the technical police of Kunming No.1 Detention Center has been successful, and Kunming No.1 Detention Center has jumped into the list of 20 model detention centers in China.