M.Sc. Konstantin Tahtadjiev

Konstantin Tahtadjiev

Practice and professional experience:

M.Sc. Konstantin Tahtadjiev – junior graduated from Sofia University  "St. Kliment Ohridski" with Bsc. degree in Applied Mathematics, as well as with Masters degree in Protection of information in computer systems and networks. Konstantin joined the IP agency "Dipl. Eng. Kostadin Tahtadjiev" in 2007 and he has focused primarily on preparing patent and utility model applications, prosecuting both Bulgarian, PCT and European patent applications through the issuance, European patent validations and patent searches, patent strategies. He subsequently passed the exams for being entered in the list as a Bulgarian patent and Trademark attorney before the Bulgarian Patent Office. Konstantin has also gained extensive experience in all aspects of trademark and industrial designs cases, including filing, prosecution, opposition, maintenance, searches, infringement, enforcement and  strategic issues.

In 2018, he successfully passed all EQE exams in one go and has been qualified as a European Patent Attorney before the European Patent Office. Currently, Konstantin is among the minority of European patent attorneys practicing in Bulgaria who has been entered in the list of of representatives before EPO by passing EQE and not listed under the "grandfather" clause.


European Patent Attorney (EQE qualified) registered under No. 9277890
Bulgarian patent, trademark and design attorney registered under No. 398
European trademark and design attorney registered under No. 64071
M.Sc. Protection of information in computer systems and networks at Sofia University
BASc. Applied mathematics at Sofia University "St. Kliment Ohridski"
IT engineer – CISCO Academy

English, Russian