How much does it usually cost to defend a patent in America?

1, American patent types American patents include inventions, designs and new plant varieties, but there is no utility model patent. American invention patents: methods, machines, products or combinations of things, or new and useful improvements, can be patented under the terms and conditions stipulated in this law. American design patent: anyone who creates a novel, original and decorative product design can obtain a patent in accordance with the provisions and requirements of this law. Patents for new plant varieties: Anyone who invents, discovers and asexually reproduces any special and new plant varieties, including changes in cultivation, varieties, hybrids and newly discovered plant seedlings, can obtain patents in accordance with the provisions of this Law, except for tuber-like propagation or wild plants.

2. US patent application channels There are three ways to apply for a patent in the United States:

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); 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).

3. Documents required for American patent application (1) American invention and design patent application: specification, patent application affidavit, power of attorney (the applicant is an individual, or a small enterprise with less than 500 employees, or a non-profit organization); (2) Claim priority: If the same invention (or design) has been applied in other Paris Convention countries, and the original application date should be required in the United States, then (3) novelty requirements (the principle of first invention and the principle of one-year preferential period) An invention loses its novelty if it is patented in the United States or other countries or publicly used or sold in the United States for more than one year; On the other hand, if it is less than one year, it still has the novelty of applying for a patent. Century Hengcheng Intellectual Property —— Trademark Registration and Patent Application