Good News!

We are pleased to announce the opening of our new Munich office on July 1st. The life science, chemistry and material science experts, led by Jan Robert Naefe and Dr. Markus Zoller, enable us to offer comprehensive IP services with even faster turnaround times. Meet our expanded attorney team.

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Our focus: your ideas

We safeguard your ideas with expertise, passion and creativity to make sure your innovative power and pioneering spirit pay off.

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Our journey: together

Working together is the best way to solve complex problems, which is why team spirit is our top priority at all times.

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Our approach: combative

Whether in official examination procedures or in litigation, we have been fighting for our clients for more than 70 years. We are well versed in tactics and always ready to come up with custom-made solutions to any problem.

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Our methods: progressive

From encrypted communication to paperless office, we are every bit as much in tune with the times as you are.

Your specialists in patent, trademark and design law

Our firm has been the first port of call for all matters relating to patent, trademark and design law since 1949.

Thanks to our merger with Mehler Achler Patentanwälte in 2021 and the opening of our Munich office in 2024, we have expanded our capabilities for our clients and offer consolidated expertise.

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Start-up consulting

Protecting ideas, patenting inventions, practicing innovation: These are the building blocks of our expert start-up consulting, which will help you with all the aspects involved in founding a company.

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About us

Whether you are a solo inventor or a big industrial player, our firm in Wiesbaden has been advising German and international clients on all areas of protection of industrial property rights for more than 70 years.

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News

Freedom-to-operate: This is what you need to know

If you want to use a technical invention, a trade mark or a special design, you should not only think about applying for an IP right, but also about a “freedom-to-operate” (FTO) search. This is the only way for inventors and entrepreneurs to ensure that no third-party IP rights are infringed during the entire manufacturing, development and sales process.

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Have your trade name checked: This is what you should consider

Finding a name for your own product or company can be one of the most important and difficult tasks for an entrepreneur or founder. After all, there is an almost infinite number of possibilities. At the same time, there is always the risk that the chosen trade name already exists in the same or a similar form and has already been registered.

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Protecting designs from imitation

Registered designs can offer a high recognition value for your company and make your external or product appearance unique. To avoid imitations, it often makes sense to have designs legally protected. In this article, you can find out exactly how to proceed and what is important when protecting designs.

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Patent search: How to proceed

The first patent application is an important milestone in the life of an inventor and/or entrepreneur. However, in order to avoid legal difficulties or a lengthy and expensive legal dispute, an important step should be taken before the initial application: the patent search. This can prevent the existence of identical or similar patents in Germany or abroad that could conflict with your patent application.

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Technical expertise

We will be happy to advise you on all technical fields, such as those relating to mechanics, mechanical engineering, electrical engineering and physics, organic and inorganic chemistry, biochemistry and biotechnology, pharmacy, medicine, medical technology and software.

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Legal expertise

From patents and utility models to trademarks, registered designs and Internet domains in Germany and on an international basis, we are on hand at all times to provide our clients with the full breadth of our expertise.

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WSL worldwide

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opposition and invalidity proceedings

in Europe

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patent applications

in North America

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trademark applications

in Central and South America

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intellectual property cases

in more than 20 African countries

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design applications

in Asia

Careers at WSL

Talent. Enthusiasm. Enjoyment.

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