Trademark can be defined as a protective mark that can be graphically represented, especially in words, including personal names, sketches, letters, numbers, product shapes or their packaging, three-dimensional shapes, colours as well as combinations of all aboved mentioned marks considering the fact that they are adequate for differentiating products or services among entrepreneurs. Trademark law can be defined as a group of legal regulations by which the problem area of legal protection of trademarks is being arranged i.e. legal relations in relation to registration or acknowledging the trademark, its effects, changes on trademark, duration and maintaining of the trademark, cessation of trademark value, administrative law, civil law and criminal law protection of trademarks and other issues. In the context of EU the special supranational trademark law has been introduced implying possibility of registration the EU trademark. Following the implementation of the Croatian accession procedure to the EU integration i.e. creating preconditions to full membership, it is necessary to implement the acquis communautaire in this area of intellectual property law into the domestic law. [ABSTRACT FROM AUTHOR]