Firm Profile > Dr. Helen G. Papaconstantinou and Partners > Athens, Greece

Dr. Helen G. Papaconstantinou and Partners
106 74 ATHENS

Greece > Intellectual property Tier 1

Dr. Helen G. Papaconstantinou and Partners is an ‘excellent, knowledgeable and super responsive’ IP boutique. Excelling on all IP fronts, the team’s work includes national, international and EU trade marks filing, patent applications and validations, anti-counterfeiting and anti-piracy measures, exploitation of rights and the full array of relevant litigation. Eva Yazitzoglou, also qualified as a European parent attorney, is well versed in trade mark and patent infringement cases, while Miranda Theodoridou’s various strengths include domain name and copyright matters, in addition to contentious matters in the higher courts. They jointly head the department alongside Maria Athanassiadou, who focuses on patents, utility models and supplementary protection certificates (SPCs), along with industrial designs and trade marks. In addition, Fotini Kardiopoulis is the key contact for counterfeiting and anti-piracy matters. The team's sector expertise includes chemicals, cosmetics, pharmaceuticals, energy, food and drink, fashion, toys and automobiles.

Practice head(s):

Eva Yazitzoglou; Miranda Theodoridou; Maria Athanassiadou

Other key lawyers:


‘High level of specialisation and focus on trade mark registration and defence, handling matters worldwide. Very extensive network of agent law firms.’

‘Excellent, knowledgeable and super responsive team which provides clear advice. Especially good for SPC work.’

‘Maria Athanassiadou is recommended.’

HP&P (Dr Helen G. Papaconstantinou and Partners), celebrating its 100th anniversary in 2020, is one of the oldest and largest IP law firms in Greece and broadly recognized as one of the leading in the country. Following the retirement of Dr Papaconstantinou at the end of 2018, Eva Yazitzoglou co-founder of HP&P, took over in the lead as the managing partner.   The other partners of the firm are Miranda Theodoridou, Maria Athanassiadou and Fotini Kardiopoulis.

HP&P is registered with the Athens Bar Association and is a member of the Greek Association of Law Firms.

With 12 fully qualified lawyers, two of them being European Patent Attorneys and 22 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 enjoys international reputation for providing high quality expert services and sophisticated legal and business solutions in the IP field, aptly combining its international orientation with an in-depth knowledge of the Greek legal and business environment.  What sets HP&P apart is its team’s extensive experience and expertise in the whole spectrum of IP services and their commitment to problem solving and achieving results.

The firm closely collaborates with 40 highly experienced technical counsellors in all scientific fields, who are competent translators and provide consulting services of excellent quality.

Throughout the firm’s activity, longstanding, invaluable collaborations with hundreds of highly reputable firms around the world have been established, enabling HP&P to represent some of the most important companies worldwide – either directly or through their legal agents – building on a solid basis of mutual benefit.

HP&P is constantly ranked among the top Greek IP law firms by international legal directories and associations.


  • National, EU, international trademarks
  • National, European patents, PCT applications , Utility models,
  • European patent validations
  • Supplementary Protection Certificates
  • Plant variety rights
  • National, Community, international designs
  • Geographical indications and designations of origin
  • Copyright and protection of artistic works
  • Exploitation of IP rights and licensing
  • Franchising
  • Due diligence searches and related consultancy and monitoring
  • Litigation involving all aspects of IP law
  • Consultancy
  • Anti-piracy, anti-counterfeiting, customs monitoring and border measures
  • Trade secrets
  • Domain names
  • Internet law
  • Online contracts and services
  • Competition
  • Advertising and consumer protection law
Department Name Email Telephone
National/European union/international trademarks/industrial designs
National/european patents/PCTs/ SPCs/validation of EPs/utility models
Plant breeder’s rights
Copyright/protection of artistic works
Foreign jurisdictions
Geographical indications and designations of origin
Exploitation of IP rights/licensing, franchising
Due diligence searches and related consultancy/monitoring
Litigation involving all aspects of IP Law
IP consultancy
Anti-piracy/anti-counterfeiting/customs monitoring/border measures
Trade secrets
Domain names, alternative dispute resolution (ADR)
Internet law/electronic forms of payment, online contracts and services
E-commerce/competition, advertising and consumer protection law
Photo Name Position Profile
Ms Maria Athanassiadou photo Ms Maria Athanassiadou Partner
Ms Fotini Kardiopoulis photo Ms Fotini Kardiopoulis Partner
Mrs Maria-Miranda Theodoridou  photo Mrs Maria-Miranda Theodoridou Partner
Mrs Eva Yazitzoglou photo Mrs Eva Yazitzoglou Managing Partner
Number of lawyers : 11
Contacts (partners) : Eva Yazitzoglou (Managing Partner)
Contacts (partners) : Miranda Theodoridou
Contacts (partners) : Fotini Kardiopoulis
Contacts (partners) : Maria Athanassiadou