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Highly qualified in intellectual property law. Specialist lawyers for intellectual property law and Master of Laws (LL.M.).

We have been protecting intellectual property for many years, focussing on trademark law, patent law, copyright law, design law and competition law. Andreas Erlenhardt and Florian Marlow are bar-certified specialist lawyers for intellectual property protection. They also hold the title of Master of Laws (LL.M.) since they successfully completed a master's degree program to deepen their theoretical knowledge of intellectual property protection.

What can we do for you?

We develop strategies to optimally protect your intellectual property. We register trademarks and other intellectual property rights for you and monitor them carefully. We take decisive action against infringers of your trademarks, patents, copyrights and industrial designs as well as against unfair competition by competitors, in particular but not limited to cases related to ecommerce.


We enforce your cease-and-desist claims by means of warning letters and interim injunctions – this is the only way to protect your intellectual property effectively and sustainably.

Received a warning letter?

If you have received a warning letter yourself, it is important to react quickly. Send your warning letter to our law firm by fax or email without obligation – we will check for you whether the warning letter is justified and defend you against unjustified claims. We may even already know your opponent.


If you have received a warning letter from us, we recommend that you seek the help of appropriately specialized colleagues so that the matter can be settled as quickly and unbureaucratically as possible.

Contact us

We offer initial consultations at affordable and transparent fixed prices, which are offset against further fees that may accrue in the same matter.


Feel free to contact us by sending us an e-mail or calling us at any time. We are looking forward to helping you with any issues relating to trademark, patent, copyright, design, license, distribution and competition law.

Attorney at law Andreas Erlenhardt, LL.M.

Bar-certified specialist attorney for intellectual property



We do business all over Germany. Our Düsseldorf office is located within the district of the Higher Regional Court (Oberlandesgericht) of Düsseldorf, to which the following communities belong: Hilden, Langenfeld, Meerbusch, Neuss, Krefeld, Kaarst, Ratingen, Mönchengladbach, Viersen, Kempen, Wuppertal, Erkrath, Haan, Remscheid, Mettmann, Solingen, Velbert, Oberhausen, Duisburg, Mülheim, Dinslaken and Kleve – we do not have offices in these cities but only in Düsseldorf. We have advised clients who are located in Berlin, Dortmund, Bremen, Köln, Dresden, Bochum, Bonn, Gelsenkirchen, Chemnitz, Kiel, Augsburg, Koblenz, Lübeck, Leverkusen, Oldenburg, Stuttgart, Osnabrück, Paderborn, Würzburg, Ulm, Offenbach, Bottrop, Hannover, Münster, Recklinghausen, Trier, Erlangen, Jena, Reutlingen, Nürnberg, Pforzheim, Göttingen, Heilbronn, Regensburg, Ingolstadt, Darmstadt, Heidelberg, Potsdam, Leipzig, Hamm, Kassel, Saarbrücken, Mainz, Freiburg, Aachen, Braunschweig, Wiesbaden, Karlsruhe, Mannheim, Bielefeld, Essen, Frankfurt and München.