A rather progressive provision regulating the protection and exercise of trade mark rights has been established with respect to well-known marks. The Ukrainian Trade Mark Law has been supplemented by Article 25 named "Protection of Rights in Well-Known Marks". Article 25 of the law refers to Article 6bis of the Paris Convention for the Protection of Industrial Property. It establishes that it is possible to take a decision of the Chamber of Appeal of the State Department of Intellectual Property of Ukraine or a court decision as the basis for acknowledging a mark to be well-known. Thus, the Trade Mark Law finally details a list of bodies whose competence covers acknowledging a mark to be well-known. In addition, Item 2 of Article 25 establishes factors that might be taken into consideration when acknowledging a mark to be well-known.