2. 1999 Invented "Anti-hunchback and Anti-myopia Writing Pen" PatentNo.: ZL99 2 30493.8.
3. In 2002, the patent number of the solar automatic control writing pen for preventing myopia was ZL02 2 15255.5.
4. In 2006, the automatic anti-myopia and anti-hunchback writing pen for students came out. Patent number: ZL2006 2 00 10.
5. In 2007, the patent number of the active anti-myopia writing pen was invented: ZL2007 2 0008724.6.
6. In 2009, he invented the active anti-myopia writing pen (patent number: ZL2009 2 0 136564.2).