Maya Filipova Demireva

  • Associate
  • Attorney at Law
  • Trademark and Patent Attorney
  • European Trademark and Design Attorney *

Maya advises clients on trademark, industrial design and patent prosecution and enforcement. She prepares, files and prosecutes applications before the Bulgarian Patent Office and handles oppositions and cancellation actions. Maya also works with the Bulgarian police and customs authorities on IP infringement disputes, and is experienced in litigation and administrative dispute resolution.

Before joining PETOŠEVIĆ in 2023, Maya worked for almost 12 years at the Bulgarian Patent Office as a lawyer and a Dispute Department panel member. In that period, she dealt with a variety of cases concerning register operations, IP litigation, as well as ex parte and inter partes administrative proceedings related to trademarks, industrial designs and patents. Maya was also involved in legislative initiatives and took part in several EUIPO projects.

* Contractor

Practice Areas


  • Attorney at Law, Sofia Bar Association, 2023
  • Trademark and Patent Attorney, Bulgaria, 2023
  • European Trademark and Design Attorney, 2023


Native Bulgarian, proficient English, basic German


  • Faculty of Law, University of National and World Economy, Sofia, Bulgaria, LLM, 2009


  • Training Course for Industrial Property Representatives, Bulgarian Patent Office, Sofia, Bulgaria, 2015
  • Professional qualification in IPR protection, Center for Development and Training, Technical University of Sofia, Bulgaria, 2015
  • “OHIM IP Seminar” joint training, EUIPO, Alicante, Spain, 2012
  • "Main Proceedings under the Administrative Procedure Code" course, Institute of Public Administration, Sofia, Bulgaria, 2012


  • “Aspects in Proving Use of a Trade Mark“, Bulgarian Patent Office Judges Seminar in Sofia, Bulgaria, December 9, 2022
  • “Protection of Trade Secrets: State of Play in Bulgaria“, Virtual WIPO Regional Seminar on Trade Secrets for the Central European and Baltic States, April 5, 2022
  • “Cancellation Proceedings in Bulgaria“, EUIPO Regional Seminar in Helsinki, Finland, September 19, 2017


  • “Case Law in Relation to CP12 Principles: Evidence in Trade Mark Appeal Proceedings”. European Union Intellectual Property Network Convergence of Practices booklet. Bulgarian Patent Office (2022)

  • “Distinctiveness in Cases on Relative Grounds”. MA&DE in Europe: Practice on Trade Marks and Designs. Bulgarian Patent Office and EUIPO. (2019)

  • “GDPR – Balancing between Providing Information and Receiving a Service”. MA&DE in Europe: Information on Trade Marks and Designs. Bulgarian Patent Office and EUIPO. (2018)

  • “Proof of Genuine Use – EUTMR Amendments”. MA&DE in Europe: Information on Trade Marks and Designs. Bulgarian Patent Office and EUIPO. (2017)


  • Sofia Bar Association
  • INTA