If at First You Don’t Succeed: File, File And File Again

By Tom Engellenner Petitioners seeking to invalidate patents via the new AIA inter partes review ("IPR") proceedings at the U.S. Patent and Trademark Office (PTO) appear to be increasingly willing to file multiple petitions against the same patent. In several instances, the same petitioner has filed three, four or even five petitions against a single … Continue reading If at First You Don’t Succeed: File, File And File Again