Analysis:

Why is 84 disinfectant called "84"? Some netizens asked if it was the name of the brand. I really couldn't answer this question, so I quickly searched it. Only then did I know that it was originally named "84" because it was developed in 1984. See: People's Republic of China (PRC) the Supreme People's Court Civil Judgment (2002) Min San Zhong ZiNo. 1.

"... Beijing Higher People's Court found out that 1984, ditan hospital's predecessor, Beijing No.1 Infectious Disease Hospital, successfully developed a disinfectant that could quickly kill various hepatitis viruses. It was appraised by experts organized by Beijing Municipal Health Bureau, and won the second prize of application achievement. It was named "84" hepatitis decontamination solution, and later renamed as "84 disinfection solution". 1985 In March, ditan hospital was awarded the third prize of scientific and technological achievements by the people of Beijing. 1984 ditan hospital established "Beijing No.1 Infectious Disease Hospital Labor Service Company" to produce and sell "84" disinfectant. From June 65438 to June 0992, ditan hospital established Beijing Longan Medical Technology Development Company (hereinafter referred to as Longan Company) and entrusted it to produce and sell "84" disinfectant. The two sides agreed that all legal disputes in the production, research and development, operation and sales of "84" disinfectant in the future will be settled by ditan hospital in the name of ditan hospital. 1March 1997, ditan hospital also transferred its technology and licensed it to more than 30 manufacturers nationwide to produce and sell "84" disinfectant. ……"

But whether 84 should be the generic name of this kind of products or the trademark of well-known goods is actually a lawsuit. Interested parties can look at the full text of this judgment: dlcls/showx? id=302。 cid= 10