• “second to none for complex design issues – whether relating to shapes or colour combinations” — WTR 1000 2017 - The World’s Leading Trademark Professionals

  • “The very best trademark lawyer in the country” — WTR 1000 2017 - The World’s Leading Trademark Professionals

  • “extremely good” — WTR 1000 2016 – The World’s Leading Trademark Professionals

  • “a real interest in the business of clients” — Chambers Global 2014

  • “really creative and thinks with us as a business” — IP stars 2015

  • “energetic, passionate and hard-working” — Chambers Global 2014

KLOS c.s.

KLOS c.s. is a prominent Intellectual Property law firm based in the Netherlands with European reach.

Our mission is to protect our clients' creativity, goodwill, reputation, technology and know-how. We protect what makes our clients' products unique: branding, design, content and technology.

We represent our clients in litigation and provide strategic and practical advice in the field of trade mark, copyright, design and patent law as well as related areas, such as unfair competition, right of publicity, database protection and know-how protection.

Our clients

Our clients operate in a wide range of different industries including consumer electronics, food, fashion, fast-moving consumer goods, chemicals, accessories, luxury goods, entertainment, advertising, toys, publishing, furniture, and sports. Whether they are market-leading global players or smaller businesses, our clients’ success and ability to compete invariably depends on the creativity, innovation and marketing they invest in their products. We make sure that investment is protected in the best possible way.


Our close-knit, agile team of attorneys is comprised of a dynamic mix of up and coming young talent and seasoned attorneys that have been at the top of their profession for many years. What binds the team together is dedication, ambition and creativity. Dedication to the mastery of the challenging and complex field of law that is Intellectual Property. Ambition to where necessary use all available means to the limit. Creativity to find new solutions.