Intellectual property is our whole life.
Professional life.



Paweł Siekierzyński, partner, an advocate with over 20 years work experience in the largest Polish and international law firms specializing in intellectual property. Specialist in the field of intellectual property, competition law and corporate law. Member of the Warsaw Bar since 1996.

Advised leading Polish, European and international corporations on key intellectual property issues. He has experience in advising on competition law and corporate law issues.

A lawyer with vast practical legal knowledge and also (not only according to Bartek – a long-term friend and partner) unprecedented legal intuition from lifetime experience in advising on a wide spectrum of intellectual property cases.

Represented clients in many, also precedent, cases in all instances of Polish courts and the Court of Justice of the European Union.

Graduate of Warsaw University and the University of Tubingen in Germany and the Postgraduate Intellectual Property Studies at the Warsaw University

Author and co-author of publications, including about intellectual property, among others Trademark Law in Central Eastern Europe; International Patent Litigation; Handbuch des internationalen GmbH-Rechts, polnischer Teil; Insolvenzen in Europa.

Awarded: ILO Client Choice Award Winner 2013 (General Corporate, Poland)

Speaks fluent German and English.

Collector or modern art and vintage cars. Passionate about golf and skiing.



Bartłomiej Kochlewski, partner, advocate, specializes in intellectual property and labor law. Member of the Warsaw Bar since 1997.

From the beginning of his career he worked in firms specializing in intellectual property

Represented clients before the Supreme Court in cases that set new routes of interpretation of intellectual property law. He also advised clients in cases decided by the Court of Justice of the European Union and represented them before it.

Graduated from the Warsaw University and the British Law Centre in English and European Law at the Warsaw University. British Council Scholar of the European Young Lawyers’ Scheme at the College of Law in London.

Published about the Roche – Bolar exemption in Polish law.

Ranked in: Chambers Europe and World Trademark Review 1000 (The World Leading Trademark Professionals).

Speaks fluent English.

Amateur mountain biker and skier, passionate gourmand cook.



Magdalena Popielska, partner, attorney-at-law, specializes in intellectual property law and labor law. Member of the Warsaw Bar.

Since the beginning of her professional career, she has been a member of teams handling trademarks, industrial designs and patents enforcement and protection cases.

Magdalena advises clients on the resolution of current employment issues and also represents them in complex disputes before labour courts.

She graduated from the Cardinal Stefan Wyszyński University in Warsaw.

Magdalena speaks English.

Passionate roller skater.








Aleksandra Penkowska, partner, advocate specializing in intellectual property law. Member of the Warsaw Bar since 2011.

In her intellectual property practice, she has represented Polish and foreign clients in disputes concerning infringement of trademarks, industrial designs, patents and copyrights. She has also represented clients in prosecution proceedings before the Polish Patent Office and administrative courts. She advised on cases decided by the Court of Justice of the European Union.

She drafted and negotiated licensing agreements and agreements for the acquisition of intellectual property rights, and advised on developing a strategy for the protection of intellectual property rights in companies.

She graduated with honours from the Faculty of Law and Administration at the University of Warsaw, as well as from Cardiff University Law School (obtaining a Certificate of Higher Education in Legal Studies), the British Law Centre in English and European Law at the University of Warsaw, Postgraduate Studies in Intellectual Property Law at the University of Warsaw and Postgraduate Studies in Art History at Collegium Civitas.

She participates in the work of international legal associations, i.a. the International Association for the Protection of Intellectual Property (AIPPI) – as a Member of the Standing Committee on Trade Secrets and the Diversity&Inclusion Bureau Advisory Committee, the International Association of Lawyers (UIA) – as Deputy Director of the UIA-IROL – Human Rights and Protection of Lawyers.

She is fluent in English.

She likes to share her knowledge, regularly supporting NGOs and taking part in projects promoting legal knowledge among children and young people.

An amateur of mountaneering in all seasons.


Of counsel

Wojciech Dobkowski, attorney-at-law with over 20 years of experience in handling complex litigation.

Member of the Warsaw Bar Association since 1991. He specializes in criminal law in the field of commercial crimes, white-collar crimes and criminal aspects of the protection of intellectual property rights.

He was involved in many complex criminal trials, representing brand owners as an attorney for an auxiliary prosecutor.

A graduate of SGPiS (currently the Main School of Economics) and the University of Warsaw.









Senior Associate

Mateusz Hyży is an advocate with several years of experience in representing clients in court and arbitration proceedings.
He specializes in intellectual property matters, in particular trademarks and combating unfair competition.

In his career, he was associated with one of the largest Polish law firms, where he dealt with procedural aspects of industrial property protection. He also worked in a leading international law firm, gaining experience in cross-border cases.

He graduated with honors from the Faculty of Law and Administration at the University of Warsaw and the Institute of Transnational Law and Practice at the University of Washington in Seattle.

He is a member of the Warsaw Bar .

Mateusz is interested in civil aviation and the history, culture and geography of the United States.








Joanna Wąsowska, Joanna Wąsowska, trainee attorney at the Warsaw Bar. She graduated from the Law Faculty at the Jagiellonian University in Cracow, where she also defended her bachelor’s degree in intellectual property and new media law. She has been gaining professional experience first in Krakow and now in Warsaw, mainly in boutique law firms.

Prior to joining SK+, she was involved in providing services to business clients – primarily assisting in litigation (both civil and administrative) and advising clients on the compliance of their business with data protection and GDPR regulations.

Currently, she mainly deals with cases in the field of data protection, intellectual property and labour law.

She is interested in cinema and literature.






German Desk support

Agnes Kowalski supports our German Desk team.

Before joining SK+, she worked in renowned German and Austrian law firms.

Privately, she is involved in the paradigm shift in education and for the protection of children’s rights, animals and the River Oder. NVC and neuroscience enthusiast.






Trademark Assistant/Paralegal

Assistant to a team of lawyers with many years of professional experience.

Ewa gained experience in assistant and administrative work international firms in Warsaw.

She has been working closely with intellectual and industrial property experts as a paralegal for many years.

She is fluent in Polish, German and English.