What are the three ways to apply for a patent in America?

1. Apply for a patent directly to the United States (confidentiality review is required in China Patent Office in advance, and after the confidentiality review is passed, you can apply for a patent directly to the United States. If you don't need to apply for a patent in China in the future, you can submit an application directly to the United States without confidentiality);

2. Apply for a patent in the United States through the Paris Convention (the priority is only 12 months); If you miss the priority date of 12 months, you can re-enter the United States within two months by submitting a recovery request and paying extra fees;

3. Apply for a patent in the United States through the PCT Patent Cooperation Treaty (priority can reach 30 months). If you miss the 30-month priority date, you can also enter the United States by submitting a recovery request and paying an extra fee.