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Global Guide
Firm Profile

Dannemann Siemsen

Firm Profile

Rio de Janeiro - RJ

  • Profile
  • Rua Marquês de Olinda, 70 - Parte -
  • Botafogo
  • Rio de Janeiro - RJ
  • Rio de Janeiro
  • Brazil
  • 22251-040

Firm profile submitted by Dannemann Siemsen

Practicing law since 2000, Dannemann Siemsen Advogados currently has 51 partners, 21 associates and 280 lawyers in its professional staff. The office represents companies from a wide range of industries, such as: automotive, pharmaceutical, insurance, telecommunications, electrical and electronic, amongst others. The firm operates in a number of other areas of law, such as: copyright, biotechnological, civil, commercial, international trade, antitrust, commercial contracts, sport, corporate, criminal, and internet and e-commerce.

Intellectual Property:
Dannemann Siemsen Advogados inherited the solid reputation of Dannemann, Siemsen, Bigler & Ipanema Moreira. The role carried out by partners of the firm during discussions surrounding the updating of the Brazilian Industrial Law in 1996 stands out. Along with the law firm, the Intellectual Property core was formed which serves national and transnational customers with broad experience in the food, automotive, entertainment, pharmaceutical, chemical and biochemical industries.

The firm strives for excellence and speed in the work it carries out, 60% of cases being closed in the same year as they are opened. Of particular note is the reduction achieved in the number of condemnations for their clients. The firm offers preventive services for businesses in consumer relations and defend companies before PROCON and other consumer protection bodies, at Special and Civil Courts and against mass litigation.

The firm provides services in the areas of licensing agreements and in the acquisition of technological knowledge. It also has strong involvement in the analysis of contracts for artistic and cinematographic production, distribution, commercial representation, computer programs, costsharing, technology transfer, purchasing, leasing, technical assistance, research and development, joint ventures and commercial contracts in general.

The firm highlight their expertise in corporate transactions with medium-sized companies with IP assets, whether closed capital corporations, limited liability companies or family businesses. They have worked with large franchisers, both when they receive investment from third parties and when they are sold.

Dannemann Siemsen Advogados has a team of professionals with wide ranging experience in health legislation, for drugs, health products, cosmetics, food, and sanitising products, amongst others. Their lawyers also provide consultancy services for advertising and marketing activities for products which are subject to sanitary surveillance both at administrative and judicial levels.

Dannemann Siemsen Advogados was present during all stages of the development of franchising in Brazil, being one of the law offices responsible for its implementation in the country. The firm had an active role in the adoption of franchise law and in the crucial changes that led to the expansion of franchising in Brazil. The firm has been acting as one of the main legal advisors for international franchise chains on their entry into Brazil. With an extensive client portfolio, which includes all relevant sectors of industry, the firm has developed considerable expertise in advising various segments in this important sector of the national economy.

Entertainment & Media:
■Release of trademarks, trade names, personality rights, copyright
■Preparation, revision and negotiation of option, co-production, distribution contracts, content licensing agreements (musical, audiovisual and other works), above and below-the-line contracts and of agreements for biographies
■Strategic and legal advice regarding the licensing and supply of information and digital content in general
■Assistance in games, lotteries and competitions (including registration and matters concerning age restrictions)
■Development of sites, production and compliance
■Disputes in civil, criminal and labour courts

Civil & Criminal Litigation:
Representation of clients in all business litigation in federal and state courts throughout Brazil, directly from offices in Rio de Janeiro, São Paulo or Brasília, or via a network of associated litigation firms.

Agrochemical & GMOs:
The firm’s clients range from pesticides/herbicides industries to companies related to biotech, cosmetics, pharmaceuticals, mechanical devices, and veterinary products. Their expertise in agrochemical, biotechnology, chemical, plant variety protection rights includes the following services:
■Defence against unfair use of information contained in agrochemical registration applications: “date exclusivity rights” ■Administrative defence and counsel on matters of agrochemical advertising
■Counsel for filing registration applications for agrochemicals before the Ministry of Agriculture
■Consultations and opinions in the agrochemical field, plant variety protection (PVP) and access to genetic heritage and traditional knowledge and benefit sharing
■Counsel and consulting in matters concerning registration of biological products
■Drafting and filing patents in Brazil and abroad
■Defending patent and PVP rights against infringers
■Filing and defending trademarks in these fields in Brazil and abroad

Intellectual Property Litigation:
The firm provides consulting and litigation work for over 500 companies and they have an excellent rate of success on these cases. They highlight their work for the pharmaceutical industry, for which they provide services to more than 10 companies, either local or global operations, in matters involving patent litigation. The majority of patent infringement lawsuits in the Brazilian Courts are under the responsibility of the firm’s office.

Dannemann Siemsen is also well-known for its intellectual property enforcement program, which is believed to be one of the few country-wide programs covering the length and breadth of Brazil, a country that is larger than the continental United States. The IP Enforcement Practice Group includes the ability to bring administration border actions and criminal seizures. The consumer goods industry is an example which frequently requires the firm’s consulting services. It represents some of the world’s leading manufacturers of clothing, protecting their portfolio and preventing it from being misused by others.


  • Rua Marquês de Olinda, 70 - Parte -,
  • Botafogo,
  • Rio de Janeiro - RJ,
  • Rio de Janeiro
  • Brazil
  • 22251-040
  • Tel +55 21 2237 8700
  • Fax +55 21 2237 8922
  • Email : [email protected]
  • Website :
  • Av Indianópolis 757,
  • Moema, 04063-000,
  • São Paulo - SP,
  • Sao Paulo
  • Brazil
  • 04063-000
  • Tel +55 11 2155 9500
  • Fax +55 11 5549 2300
  • Email : [email protected]
  • SCS, Quadra 1,
  • Bloco H,
  • 3º andar,
  • Edifício Morro Vermelho,
  • Brasília - DF,
  • Distrito Federal
  • Brazil
  • 70399-900
  • Tel +55 61 3433 6694
  • Fax +55 61 3433 6695
  • Email : [email protected]