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Chambers Brazil Contentious 2026
Dannemann Siemsen is the leader in Intellectual Property: Patents, Trademarks, Copyright and Trade Secrets.
Dannemann Siemsen has the largest and most sophisticated IP litigation practice in Brazil. We are involved in the biggest disputes involving IP rights, accumulating significant victories for our clients. Our litigators are highly sophisticated and experienced in dealing with disputes in all fields of technology, especially in pharma, biotechnology, standard essential patents, chemical, mechanical, telecommunications, electronics, IT, among others.
We are responsible for several leading cases in the area, contributing to the formation of robust case law involving intellectual property rights in the country. Likewise, we have obtained some of the highest compensation ever granted by Brazilian courts for infringements of IP rights and our litigation group is highly acclaimed by the clients and by specialized publications in Brazil and internationally as the best litigation team in Brazil.
In the area of patents, we are the firm with the largest number of lawsuits before the Brazilian courts. In addition, we have a multidisciplinary and highly specialized legal body, which makes Dannemann Siemsen the first choice for complex discussions involving inventions from all industries.
In the area of trademarks, we represent the most famous companies in the world, developing extensive protection programs for their brands and other distinctive signs.
We litigate with equal resourcefulness in the areas of industrial designs, unfair competition, software, regulatory matters, plant varieties, trade dress, geographical indications, advertising, personality rights or any other intangible asset.
With around 100 litigators, our firm has handled most of the IP litigation in Brazil and has achieved an astonishing rate of success. Our strategists carefully evaluate the case and client’s needs and design the best judicial remedy to obtain the best results expected in the circumstances.
Great technical knowledge, combativeness, and complete focus on seeking results are the main characteristics of our litigation lawyers.
