The court hearing an action for infringement of a French patent shall stay the proceedings where the unified patent jurisdiction is simultaneously seised of an application based on a unitary patent or on a patent which is not the subject of a waiver of its exclusive jurisdiction pursuant to paragraph 3 of Article 83 of the Agreement relating to a unified patent jurisdiction and the patent in dispute covers the same invention, was applied for by the same inventor or granted to him or his successor in title with the same priority date and relates to the same facts between the same parties. The stay of proceedings shall continue until the decision of the unified patent court on that application is no longer subject to appeal.
An application made in the context of the action referred to in the first paragraph shall be inadmissible where the unified patent court has ruled on the same application based on the same facts between the same parties by a decision that has the force of res judicata.