Written by: Mark Terry PART TWO In general, a reexamination is the process by which a patent owner or third-party requests that a patent’s claim(s) be reviewed against other patents or publications (prior art) by the USPTO’s Board. A patent owner may initiate the process to ensure that they have a valid patent. Subsequently, the patent owner can either pursue infringers or sleep well at night knowing that the USPTO has affirmed the validity of their patent. On the other hand, a third party may want to request a reexamination to question the validity of a patent in order to