American patents include inventions, designs and new plant varieties, but there are no patents for utility models. There are three ways to apply for a patent in America: 1. Apply for a patent directly to the United States (confidential examination needs to be conducted in China Patent Office in advance, and you can apply for a patent directly to the United States after the confidential examination is passed); 2. Apply for a patent in the United States through the Paris Convention (the priority is only 12 months); 3. Apply for a patent in the United States through the PCT Patent Cooperation Treaty (priority can reach 30 months). The process of patent examination in the United States is: application, novelty investigation, entity examination, supplement/modification and reconsideration. The invention patent will be published 18 months after the filing date (priority date). References:
Century hengcheng intellectual property