Valid: A valid patent is an issued patent that is not invalid for one of several reasons, the most common of which is that one or more of its claims read on prior art that was not considered by the patent office during patent prosecution. While only a court can hold a patent is invalid, many patents are informally referred to as being invalid to indicate that a court would likely rule them so.

Verified Statement/Showing: A verified statement is one made with the stated knowledge that false statements and the like are punishable by fine or imprisonment, or both, and may jeopardize the validity of the application or any patent that issues from it. A showing is evidence that the statement is true.

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