It is understood that Ye Xinhua, 48, was born in Longquan, the hometown of swords in China. He has been engaged in the research and manufacture of swords since the early 1980s. Zhejiang master of arts and crafts enjoys a high reputation in the field of traditional sword casting in China. His works are collected by China Military Museum, Chinese History Museum and China National Museum. As early as the early 1990s, Ye Xinhua successfully developed a new etiquette command knife of the China People's Liberation Army, which was known as "the first knife in the world". This knife is listed as military equipment by the General Logistics Department of China People's Liberation Army, and is used by honor guards and national flag guards of the three armed forces.
In 200 1 year, Ye Xinhua found that Shen Shi and his son, who were engaged in knife business in Beijing, applied for the patent registration of utility model "the first knife in the world", with seven core contents. Ye Xinhua believes that the patented technology of Shen Shi's father and son has already been used in the ceremonial command knives of the three armed forces of the Chinese People's Liberation Army. The seven patents of Shen Shi's father and son are not novelty and creativity, so they are not the protection objects of utility models. In April 2002, Ye Xinhua submitted the Request for Invalidation of Shen Shi's Patents for Utility Models to the Patent Reexamination Board of the State Intellectual Property Office. Moreover, the name "the best knife in the world" contains commercial advertising language, misleading the public.
After five years of tortuous and complicated litigation and appraisal, on May 30, 2006, the Patent Reexamination Board of the State Intellectual Property Office made a second ruling: the patent rights of the utility model "the world's first knife" of Shen Shi and his son were all invalid, and the patent dispute of "the world's first knife" came to the bottom.