2026
"Addleshaw Goddard’s IP litigation team in Poland stands out for its deep expertise and strategic approach to complex contentious matters. I have been consistently impressed by their ability to handle high-stakes disputes involving copyrights, trademarks and unfair competition. The team is highly responsive, provides clear and practical guidance, and always keeps me informed on the progress and strategy of each case."
"The IP filing, prosecution, and administration service at Addleshaw Goddard in Poland is highly efficient and business-oriented. The team makes the process of registering and protecting our intellectual property rights - whether before the Polish Patent Office or the EUIPO - straightforward and stress-free. Their attention to detail ensures that our IP portfolios are robustly protected, and their proactive communication means we are always up to date on the status of our applications."
"Addleshaw Goddard’s IP advisory team in Poland provides comprehensive, tailored advice across the full spectrum of intellectual property matters. Their expertise in IP transactions, copyright, trademarks, designs, patents, trade secrets, and the intersection of AI and IP is outstanding. The team excels at translating complex legal issues into actionable, business-focused solutions, and their guidance is always clear, innovative, and easy to implement. I value their collaborative and approachable style, as well as their ability to align legal recommendations with our commercial objectives."
Szymon Sieniewicz
"Szymon Sieniewicz is highly regarded for his in-depth knowledge and extensive experience in IP law, particularly within the technology, data, e-commerce and digital sectors. I respect his ability to translate complex legal issues into clear, actionable advice. Szymon is exceptionally responsive, approachable, and proactive in his communication, ensuring we are fully informed throughout every stage of our matters. I really value his collaborative style and his commitment to aligning legal recommendations with our commercial objectives, making him our go-to IP lawyer in Poland."
