Is it infringement to produce and export patented products authorized by other companies?

A: If the patent can be authorized, then the production and sale of the patented product in the patent protection zone is infringement. Export should also be a sales act, so it is also an infringement. However, if the product is produced or sold in regions and countries that are not protected by patents, it does not belong to infringement. A: No, patents in China are filed first, so the infringement judgment does not depend on whether you independently research and develop them. Whoever applies for a patent first belongs to it, and others can only give up or ask the patentee for permission. But you have to pay the fee. A special case is the right of first use. If this is the case, it can be manufactured and sold without infringement, but two conditions must be met: 1. Your company has made preparations for production and operation before the patent application date of others. 2. It can only be manufactured and sold within the original production scope, and the scale cannot be expanded. A: If it is infringement, it can only be manufactured and sold in other countries or regions that are not protected by patents.