The firm led by Konstantin Tahtadjiev, known as K Tahtadjiev, is a prominent Bulgarian and European patent agency established in 1993.The firm specializes in the preparation, filing, and prosecution of Bulgarian and European patent applications, utility model registrations, trademark registrations, and industrial design registrations.
Notable practitioners: Konstantin Tahtadjiev
2025
“Attention to detail ensures that all aspects of IP protection, from preliminary searches to application submission, are meticulously handled.”
“Communicates complex legal concepts in a clear and concise manner, and fosters confidence and understanding for clients”.
"Comprehensive and client-centric approach.”
“Consistently demonstrates a deep understanding of IP laws and regulations, coupled with a strategic mindset tailored to meet the specific needs of each case.
"Extensive expertise in IP property law, particularly in the area of trade mark registration. Has a proven track record in handling complex trade mark applications, combined with a thorough understanding of the legal frameworks and procedural nuances”.
"Great price, very detailed and quick responses."
“Meticulous attention to detail and ability to provide strategic, client-focused advice ensured that the client's trade mark application would be both robust and aligned with their business objectives.”
"Personal attention, good communication, and a friendly but professional approach."
“Proactive attitude, reliability, and dedication to achieving the best outcomes make services invaluable."
“Professional reliability and ability to deliver high-quality results within tight timelines further reinforced my decision to engage."
"Responsive and explains everything in detail in an easily understandable manner."
"Smart, friendly, very knowledgeable about IP – and provides tremendous value for money."
Case studies show the firm assisted Shenzhen Viewplay company in filing and prosecution of two designs in the European Union.
Case studies show that the firm advised an Integral Med Solutions active in Pharmaceuticals / dietary supplements in Filing and prosecution of PCT application before the Bulgarian patent office.
Case studies demonstrate that the firm represented firm ENEA focused on green energy solutions in Opposition to two Bulgarian trademark applications.