In issue 2/2013 of the Polish Patent Office Quarterly, an article was published devoted to the celebration of the 65th anniversary of birth and 40th anniversary of the research work of Professors Janusz Barta and Ryszard Markiewicz. The ceremony took place in the Aula of Collegium Novum on May 17, 2013. The article presents the Jubilee Book and conference organized on that day, entitled „Disputes over intellectual property”. See