KG Law Firm provides a full-service intellectual property (IP) practice representing Greek and international clients across the entire spectrum of IP law. With deep-rooted expertise in trademark, copyright, design, patent, domain name, and unfair competition matters, the firm has built a strong track record serving clients in the financial, pharmaceutical, cosmetics, beverages, and technology sectors. The team's trademark practice is at the core of
the firm.
KG's team offers comprehensive trademark support, from clearance searches and filings at national,
European, and international level, through prosecution, oppositions, revocation, and invalidity actions, to representation before the Greek courts, the Trademark Administrative Committee and the EUIPO.
The firm also advises on the strategic management and maximization of trademark portfolios, ensuring the proper management of clients' IP assets. This is complemented by substantial experience in IP transactions, licensing, negotiation, and due diligence. In terms of copyright law, KG provides both advisory and litigation services, with a particular focus on software-related matters, whereas the firm's patent practice covers the filing, registration, and
validation of European patents, as well as patent litigation, while its design practice extends to design filings and related court proceedings.
KG also represents clients before the Greek Customs Authorities and in proceedings arising from the seizure of counterfeit goods. Additional services include domain name registration and dispute
resolution, as well as consulting on trade secret protection. Across all IP areas, KG is committed to delivering forward thinking and commercially sound legal solutions tailored to each client's specific needs and business objectives. The team combines rigorous legal expertise with a results-oriented approach, ensuring clients receive not only technically sound advice, but also strategic guidance grounded in commercial reality.
Whether navigating complex multi-jurisdictional disputes, managing large IP portfolios, or advising on sensitive transactions, KG stands out as a trusted partner in terms of IP matters.
IPWORK.GR is a boutique legal practice specializing in intellectual property and alternative dispute resolution in Greece and across the European Union. Its services cover the full spectrum of IP and related fields, including trademarks, patents, copyright, domain names, trade secrets, emerging technologies and AI, advertising, unfair competition, franchising, privacy, and personality rights. Distinguished by a client-focused and results-oriented approach, IPWORK.GR provides clear, practical solutions to complex legal and business challenges. Much of its work involves cross-border issues, effectively resolved through consultation, ADR, or litigation, with consistently successful outcomes for clients.
Established in 1951, KIORTSIS & ASSOCIATES Law Offices is specialized in all aspects of Intellectual property and is well known for its high level of expertise in addition to its extensive legal experience.
Our Offices are equally competent in IP filings, litigation, contracts and negotiation, as well as in legal consulting. They maintain a very strong international clientele, which consists of small to large companies as well as local and foreign individuals. Moreover, KIORTSIS & ASSOCIATES Law Offices co-operate with prominent and trustworthy law firms on an international level, which enable us to offer comprehensive legal services to clients with international business interests.
Our experience of over 70 years, high level of education, continuous awareness of the latest developments in Intellectual Property Law through webinars, studies, articles, etc. together with our state - of - the - art equipment help us to provide our clients with the best available services in Greece and within the European Union. Furthermore, Kiortsis & Associates Law Offices monitors and ensures its active compliance with the spirit of the law and ethical standards with the aim of increasing long-term profits and reducing business and legal risk.
We are very happy that International Law Firms’ Guides, such as “The Legal 500”, Law Firm Directories and Legal Magazines have been continuously ranking Kiortsis & Associates Law Offices over the years in high positions among the leading IP firms.
Dr. Helen G. Papaconstantinou and Partners (HP&P), with a history that spans over a century, having originally been established in 1920, is broadly recognized as one of the premieur IP law firms in the country. HP&P enjoys an international reputation for high quality expert services by providing sophisticated legal and business solutions in the full IP lifecycle, from advising on and prosecuting IP portfolios, assessing, managing and maximizing the value of intellectual property in commercial and licensing transactions through out of court negotiations and settlement, IP litigation and enforcement strategies.
The firm aptly combines its international orientation with a thorough knowledge of the Greek legal and business environment. What sets HP&P apart is its extensive experience and expertise in the entire spectrum of IP services and its commitment to problem solving and achieving results. HP&P was the first law firm of its kind to implement quality control system (ISO 9001/2015).
With respect to the people comprising the Firm, Managing Partner is Eva Yazitzoglou and the other Partners are Miranda Theodoridou, Maria Athanassiadou and Fotini Kardiopoulis.
HP&P is home to 12 fully qualified lawyers with considerable experience in all intellectual property matters over many years of practice. Two ΗP&P attorneys are European Patent Attorneys, one is trained and certified by the EUIPO, while all the attorneys of the Firm are Members of the Athens Bar Association. Most of them are admitted to practice before the Supreme Court and the Council of State. With the efficient assistance of 21 experienced paralegals and supporting staff, HP&P provides legal and administrative services of excellent quality and closely collaborates with 40 technical counsellors whose expertise covers all technical fields.
HP&P is registered in the Athens Bar Association and is a member of the Greek Association of Law Firms.
HP&P attorneys are regular contributors to important and internationally recognized IP resources such as the World Trademark Review, IAM, Wolters Kluwer Manual IP, Katzarov's Manual on Industrial Property and several INTA and ECTA resources.
The Firm is consistently ranked among the top IP law firms in Greece by international legal directories and associations and have received many awards in the IP field.
Despite its top ranking, HP&P is continuously striving to further improve the quality and reliability of its services and enhance its strongly actively inclusive working ethos that encourages collaboration as the main driving force behind effective leadership and successful results. Our vision is to keep on incorporating new practice areas and opportunities so that we can continue to adapt to the growing and ever-changing needs of our clients and the legal industry.
*Trusted Talent firms have at least one ranked IP Star and/or Rising Star, but are not yet ranked in this jurisdiction.