1, if the exclusive rights are exactly the same, it means that the two patents essentially protect the same thing. It should be said that only the previously applied patent has the patent right. This may be due to censorship. For example, the content of a utility model patent is the same as that of other patents, and this utility model has not been authorized by substantive examination. In this case, the prior patent may be invalid. If the latter patent has the same characteristics as the previous patent, the latter patent will be invalid, which is equivalent to non-existence. If the remaining features of the latter patent are different from those of the previous patent, then the latter patent can be modified to make it different and then have a patent right.
2. If the dependent claims are the same, it depends on whether the exclusive rights are the same. If the exclusive rights are different, the subordinate rights can be the same, no problem. Because all the characteristics of a subordinate right are: the characteristics of the cited right+the characteristics of the subordinate right.