External use of patent

1, there is no international patent, the correct name should be "international patent application", and the patent right is regional. If you apply in China, you will only get power protection in Chinese mainland (except Hong Kong, Macao and Taiwan). For example, if you don't apply in the United States, then Americans can use your patent without your consent, so there is a problem. If Americans know your patent and make your patented products in the United States,

2. The above international patent application usually refers to PCT international patent application. The advantage of this method (and the Paris Convention method) is that you want the patent application filed by the International Bureau to be recognized at the same time in the 142 member countries that have joined the PCT Treaty. Entering the national stage, you can choose to enter these countries. If you are authorized by the selected country, your patent will be protected in that country. The cost of this PCT application is very high.