First, if an exhibition does not have enough scale and influence, there will be no grace period, which will affect novelty. As for the existing technology, according to the provisions of Article 22 of the Patent Law, it refers to the technology known to the public at home and abroad before the filing date. No matter whether there is a grace period or not, the technologies on display are all existing technologies, except that novelty will not be affected during examination, which is a special case.

Second, the grace period means that the publicity of one's previous exhibition does not affect the novelty of one's patent application and cannot bind others. Once others make it public within these six months, the existing technology made public by others is not bound by the so-called grace period, which will of course lead to the loss of novelty of exhibitors' applications thereafter. The prior disclosure of others, even if it is not made public, will affect the novelty of the later application, but it cannot directly affect its creativity.