Question juridique clé
Whether the appeal requesting only annulment was admissible
Solution extraite
The appeal was admissible because the Federal Supreme Court would in any event have had to remand for further fact-finding if the appellants prevailed.
Motifs extraits
A pure annulment request is exceptional under Art. 42 LTF, but permitted where no final judgment can be rendered due to insufficient factual findings on infringement and damages.