. . . . The quickest way: you only need to file a patent application first, and then carry out marketing activities. Examiners judge the novelty of patents according to the date of patent application. As long as you provide evidence to prove that it happened after the patent application date, it will not have any impact on the authorization of the patent.
. . . . A safer way is to wait for the patent registration announcement before conducting market activities, which can increase the high persuasiveness of your product technology; It usually takes 3-9 months to obtain a utility model patent. I wonder if you can wait so long.