The publication by V. Talimonchik(Dr. Hab. in Law), assistant professorat the International Law chair, reflects the relevant issues of law enforcement in the area of intellectual property. The aimof the publication is to point out the specifics of using Article 10 bis of the Paris Convention for the Protection of Industrial Property in Russian courts and to evaluatethe correctness of this usage in terms of theory of international law and the specifics of usage of international agreements on unificationand harmonization. The research utilized an array of general and philosophical methods, including logical, formal legal,problem and theory, analysis and synthesis, generalization and description methods. The conclusion is that Article 10 bis should not be applied in junction with similar norms of the national law or other international agreements. Acts of international organizations are not additional means of clarification of the Paris Convention.