Questão jurídica principal
Whether the claimants had a sufficient declaratory interest under Art. 52 MSchG for a negative non-infringement action
Decisão extraída
A declaratory interest existed in principle after warnings, but the lower court could deny standing because the continuing uncertainty was still tolerable for the claimants and the respondent's interests weighed heavily.
Fundamentação extraída
The Federal Court confirmed that negative declaratory actions require an immediate, significant, legally protected interest and that, especially in such actions, the defendant's interests must also be considered. Here, the claimants had knowingly created and maintained the disputed designations despite warnings, had not shown substantial business reliance, and faced only a limited need to wait and see whether suit would be brought.