Experts in
intellectual property

Over 20 years of experience


Good Law B.V. is a boutique law firm in the field of intellectual property and all related commercial issues and contracts, including commercial litigation.

Good Law is a boutique firm dedicated to design rights, trademarks, copyrights, product development and design, commercial cooperation, marketing, media and litigation. Good Law is known for its experience in brand protection strategies and litigation, as well as handling trademark disputes and oppositions, and copyright and designs disputes.

Our clients are leading in fashion industry and consumer goods.

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“Carja Mastenbroek is tenacious in her endeavours to remove fakes from the market. She seized counterfeit footwear for Puma and is pursuing alleged imitators of
Tommy Hilfiger products”.

WTR 1000 (2018)

“Carja Mastenbroek is passionate about what she does and has the right skill set for complex matters”

WTR 1000 (2019)


Strategic partner of

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Carja Mastenbroek

+31 (0)6 1506 21 63

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About Carja

Carja Mastenbroek has 20 years experience in the international intellectual property rights area. Her practice focuses on brand protection, anti-counterfeiting and trademark, design rights and copyright infringement litigation. Carja is particularly active in the retail and fashion sector. Carja has experience in the entire lifecycle of products from clearance advice to infringement litigation, including protection and exploitation of intellectual property rights. She is well known amongst peers and widely respected for her long standing experience in soft IP matters. Carja is frequently seen advising on international trade mark issues, Europe-wide enforcement of design rights, and trademark litigation in the Dutch Antilles. Clients call her a real go-getter with great technical skill, and a forceful litigator.

Professional Affiliations

INTA (International Trademark Association)
AIPPI (International Association for the Protection of Intellectual Property)
BMM (Benelux Association for Trademarks and Designs)
VvRr (Netherlands Advertising Law Association)
VIEPA (Association Intellectual Property Litigation Lawyers)
Secretary of the association of Intellectual Property Litigation Lawyers
Fipe (Female Intellectual Property Experts)


WTR 1000


Carja Mastenbroek has registered intellectual property right and civil litigation law as specialism in the register of the Dutch bar Association. This registration obliges her to comply with the obligation to achieve a minimum number of training hours per specialism each year.

Sander Verbeek

Sander Verbeek

Attorney at Law
+31 (0)6 133 043 58

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About Sander

Sander Verbeek specialises in Intellectual Property Law and related areas of law. He has been active in the IP field for more than twenty-three years. National and international companies can count on his expertise. Sander thinks in terms of possibilities and is a good improviser. A socially driven person who can act decisively. He penetrates directly to the core of the problem and therefore quickly finds the right solution. Sander thinks effortlessly outside the legal frameworks. He stands next to the entrepreneur and can put himself in his shoes as much as possible. His goal is to strengthen entrepreneurs preventively with good legal advice. His favourite quote: "To advice is simple but the hardest thing there is, is to give simple advice".

Professional Affiliations

European Community Trademarks Association, (ECTA)
Association for Copyright (VVA)
International Association for the Protection of Intellectual Property (AIPPI)
Benelux Association for Trademarks and Design Law (BMM)



Attorney at Law
+31 (0)6 296 226 65

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About Jennifer

Jennifer Quik has worked at various law firms before joining Good Law. Since completing her Master's degree in Information Law at the University of Amsterdam, she has mainly focused on Intellectual Property Law and Privacy Law. With regard to Intellectual Property Law, Jennifer mainly focuses on trade name, trademark, design and copyright law. In addition, Jennifer has extensive knowledge of the General Data Protection Regulations and supports organizations in implementing these regulations in their business operations. You can also contact her for other subjects in the field of Information Law (including cookies, newsletters and unlawful publications).


Conan Doyle (
Vereniging Privacy Recht (

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Jeske Elink Schuurman


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About Jeske

Jeske is the office manager at Good Law. Furthermore, she is responsible for the firm’s administration and budgeting, and for the human resources management. Jeske also engages in paralegal work and if needed secretarial work for the firm.


Jeske has years of experience in the legal profession and has learned the ropes, inter alia, at the internartional intellectual property practice of Simmons & Simmons and DLA Piper Nederland, together with Carja.

“Carja is a truly forceful litigator – a real go-getter
with great technical skill.”

WTR 1000 (2018)