Utility model. Compensation for damage. Precautionary measures. Counterclaim. Declaration of invalidity of an utility model. Error Weighing of the evidence. Industrial property. Declaration of novelty. Art. 128 of the Spanish Patent Law. Art 1243 of the Spanish Civil Code. Art. 632 of the Code of Civil Procedure. Art 149.1.9 of the Spanish Constitution. Art 165 and 171 of the Industrial Property Statute.