If there is a patent, someone improves it on the basis of this patent, but it contains the contents of the previous patent, how to judge the rights and interests?

1. It is not infringement to apply for a patent after completing the invention and creation on the basis of the original patent;

2, but the implementation of the patented technology for the purpose of production and operation may be infringing;

3. You can enjoy the rights and interests through cross-licensing (the previous patentee licenses the next patentee, and the latter patentee licenses the previous patentee).