1, US Patent and Trademark Office website /5i-2/
China patent information network
Extended data
Problems needing attention in patent application abroad
1. Whether the invention-creation for which a patent is applied in a foreign country involves major national interests or needs to be kept confidential. Inventions and creations that do not involve the vital interests of the state or do not need to be kept secret may apply to foreign countries for patents; On the other hand, you cannot apply for a patent abroad.
2. Whether the invention-creation can be the object protected by the patent law of the applicant country and whether it meets the patentability requirements of that country. Generally speaking, the applicant should have a certain understanding of the patent law of the applicant country and be sure that his patent application can be approved before filing a patent application with that country.
3. Whether the invention-creation has market potential and competitors in the applicant country, and whether it is necessary to obtain the exclusive right to use it. Generally speaking, you should consider filing a patent application only when it is necessary and you expect to get benefits.