Whether the defendants' counterclaims were sufficiently connected to the main claims to be admissible under Art. 6 al. 1 LFors and Art. 272 CPC.
No. The counterclaims concerned a different legal relationship, different factual basis, and a separate dispute; they had to be pursued in a separate action.
Connexity requires the same legal relationship, the same facts, or at least a close legal link such that one claim's judgment necessarily determines the other. Here, the main action sought to stop use of certain marks for alleged unfair competition, while the counterclaims sought recognition of shareholder status, registration in the commercial register, damages, and a name-use injunction. Those claims were independent and not part of the same factual and legal complex.