The disadvantage is that if the application content is made public too early, others may use the application, which may harm the interests of the applicant. In addition, there is a great difference between published and unpublished patent applications. If the application content has not been made public, the technology can also be owned by the applicant as a technical secret, and a new patent application can be filed in the future; If the application content has been published, it means that the technology has entered the well-known technical field, and the applicant can no longer obtain patent protection for the same content. Applicants often hope that this disclosure will take place later, so as to have more time to finally decide whether to disclose their technology or prepare for it.