1. The applicant for a patent becomes the patentee after the patent is granted. Others are not allowed to produce or sell without the permission of the patentee...
2. The inventor of a patent is the person who made the invention. Inventors have the right to authorize and receive rewards. All other rights belong to the patentee.
3. If there are multiple patentees, they all have the same patent rights.
4. From the perspective of patent law, there is no order for multiple inventors. However, if you want to apply for a professional title, project, etc., people in the personnel department and project review department will look at the inventor of the patent in the same way they look at the author of the paper.