Corte di Cassazione, ruling no. 31932/2019: former owners of an intellectual property title are indispensable parties to an action for revocation or invalidity

The Italian Supreme Court on legal standing in patent invalidity proceedings: it is mandatory that also subjects who transferred their rights on the patent be joined to invalidity proceedings, since they are recorded in the register as owners, pursuant to art. 122, paragraph 4, IPC.

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