How does the doctrine of obviousness-type double patenting affect rejoinder?

The doctrine of obviousness-type double patenting can affect rejoinder in patent applications, particularly when an applicant voluntarily presents related claims in separate applications. According to MPEP 821.04: “Where applicant voluntarily presents claims to the product and process, for example, in separate applications (i.e., no restriction requirement was made by the Office), and one of the…

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