Breeder Liu Shenquan has registered a trademark for his unique pear variety, 'Baodao Ganlu', to protect it from being imitated and sold under false names in the market. The pear is known for its distinct characteristics, including its size, shape, and lack of sourness. Consumers can look for the trademark and the specific harvest date to identify the authentic 'Baodao Ganlu' pears. The article also discusses the importance of registering variety rights to protect breeders' interests and emphasizes the need for detailed variety information to be available in the market, beyond just quality and size.