Maria Puronvarsi is an internationally recognized trademark expert (WTR 1000 and MIP Trademark Star). Maria specialises in brand protection and enforcement.
Maria advises brand owners of all sizes in various questions related to trademark protection, filing strategies, trademark clearance searches, prosecution, global trademark portfolio management and global brand protection strategies. Maria handles opposition, cancellation and invalidation proceedings as well as trademark infringement and anti-counterfeiting cases. Maria has represented more than 200 global brand-owners in seizures of counterfeit goods in the Finnish customs.
During her career, Maria has successfully represented clients in many remarkable cases. Managing IP publication chose the latest case C‑772/18 handled by Maria and Jani Kaulo as the impact case of the year 2020 in Finland.
Maria’s main practice areas also include unfair competition, marketing law and fashion law issues. Maria lectures on trademark related matters as well.
Maria represents clients in trademark prosecution in the European Union Intellectual Property Office (EUIPO) and the Finnish Patent and Registration Office as well as acts as a litigator in the Finnish and European Union courts representing clients in brand rights related cases.
Areas of Expertise
Trademarks, design rights, domain names, trade names, copyrights, anti-counterfeiting, contracts, unfair competition, marketing law, fashion law, brand rights strategy.
Client Testimonials
- ”Maria Puronvarsi is very dedicated, responds quickly, and provides precise, detailed instructions and recommendations that are easy to follow.” - Managing Intellectual Property (MIP), 2026
- ”Maria Puronvarsi excels in comprehensive portfolio management, delivering thorough assessments and crafting robust protection strategies. As a trusted ally for those fending off infringers, she brings unparalleled expertise in overseeing seizures and liaising with local customs officials.” - World Trademark Review (WTR1000), 2026
- ”Maria Puronvarsi brings clients’ visions to reality, successfully registering trademarks across different jurisdictions and providing monitoring services. Effectively translating legalese to simple nuggets of information, she takes the time to ensure clients make informed decisions throughout.” - World Trademark Review (WTR1000), 2025
- ”Maria Puronvarsi handles portfolio management and opposition proceedings, and keeps infringers at bay. She is a sure pick for clients in fashion, consumer goods, and food and beverages.” - World Trademark Review (WTR1000), 2024
Lawyer Career
- Kaulo & Partners, Licensed Legal Counsels, Ltd., Partner 2021-
- Kolster Ltd., IP Lawyer 2016-2021
Education and Training
- Licensed Legal Counsel 2021
- European trademark and design attorney 2018
- Authorized trademark attorney 2018
- Master of Science (Econ. and Bus. Adm.), Intellectual Property Law, Hanken School of Economics, 2017
- Master of Laws, University of Helsinki 2015
International Recognitions
- Leading Trademark Professional in Finland 2024–2026, World Trademark Review (WTR1000)
- Trademark Star 2023-2026, Managing Intellectual Property (MIP)
- Rising Star 2019–2022, Managing Intellectual Property (MIP)
Fiduciary Positions
- Finnish Fashion Law Association, Member of the Board 2020-2025
Client Industries
- Automotive
- Fashion and luxury sector
- Consumer goods
- Food and beverages
- Media and entertainment
- Public services
- Health care
- Industrial equipment
- Software
- Communications and media
- Pharmaceuticals & medical products
- Utilities / cleantech
- Telecommunications
- Financial services
- ICT
- Education export
IPR Sector Memberships
- Finnish association for industrial property rights
- Finnish Fashion Law Association
- Finnish Anti-Counterfeiting Group
- Association of Finnish Lawyers
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