according to the provisions of the patent law, the patent right is obtained through patent application, not through display or public display. The core requirement of a patent application is novelty, that is, the invention, utility model or design has not been disclosed before the filing date. As long as the patented product is not publicly displayed before the exhibition day, you can apply for a patent on the exhibition day.
before applying for a patent, the applicant should try to keep his invention, utility model or design confidential to avoid disclosure and publicity. Exhibiting is a common way to publicize and display products. During the exhibition, applicants can display their patented products, but it should be noted that before the exhibition, they should ensure that they have submitted a patent application to protect their rights and interests.