Vires VTDNone

Vires VTDNone is a legal phrase used in intellectual property law, particularly in patent litigation. "Vires" means "illegal" or "invalid," and "VTD" stands for "Vested Title Date," with "None" indicating no specific date. Together, it signifies that a patent or claim is considered invalid or unenforceable, often due to issues like prior art or failure to meet legal requirements. Essentially, it states that the patent's legal rights are not valid from any vested date, rendering it unenforceable in court.