What grounds can objections be raised on in a Post Grant Review?

The correct answer is that objections can be raised on any validity ground during a Post Grant Review (PGR). This process allows a third party to challenge the validity of a granted patent based on a broader set of issues than just prior art alone.

In a PGR, the challenging party may argue that the patent’s claims are invalid for a variety of reasons, including, but not limited to, lack of novelty, obviousness, insufficient disclosure, and unpatentable subject matter. The ability to challenge a patent on any ground of invalidity, not just narrowly defined grounds like prior art or specific standards like novelty or non-obviousness, is a key feature of Post Grant Review.

This breadth in grounds ensures that all potential issues concerning the patent's validity can be addressed within a single procedure, rather than forcing parties to resort to separate litigation for different kinds of validity concerns. This comprehensive approach helps to streamline the patent dispute process and allows for a thorough examination of the patent's validity in a more efficient manner.