Is it PCT to apply for a patent abroad?

No, there are two ways to apply for a patent abroad, one is the Paris Convention and the other is the PCT international patent application. The former is suitable for the situation that the target country is determined, the number is small and the funds are abundant. Features are: multiple forms need multiple searches, multiple announcements and multiple audits, and applications need to be submitted and state fees paid within 12 months. The latter applies when the target country is unclear/insufficient. Features: one form needs international retrieval and international publication, and the international preliminary examination enters the national stage within 30 months, and the latter submits the translation and pays the national fee. Compared with the Paris Convention, the latter has a tendentious written examination opinion for reference, so as to judge whether its patent is suitable for continuing to enter the national phase.