On May 2nd, 2012, the former partnership Momsen, Leonardos & Cia (ML&Cia) ceased its activities and was succeeded by two new entities, being Kasznar Leonardos one of them. On that occasion, 7 senior partners and over 180 employees who were working at ML&Cia created Kasznar Leonardos.
Our firm inherited a priceless legacy from Momsen: highly-qualified professionals and almost a century of experience in protecting and enforcing the patents, trademarks, and copyrights of some of the largest companies in the world.
Kasznar provides Brazilian and foreign companies with a wide range of technical and judicial services in intellectual property (IP) areas such as trademarks, domain names, patents, copyrights, geographical indications, computer and software rights, unfair competition, trade secrets and confidential data, litigation and dispute resolution, publicity law, anti-piracy, industrial designs, technology transfer, franchising and licensing, regulatory healthcare law, and the protection of plant varieties. In these areas, Kasznar’s team acts as attorneys in the prosecution of applications; as legal counsels in licensing and other contract matters; as lawyers in litigation and arbitration; and as neutrals in arbitration and mediation.
Around 70% of Kasznar’s clients are multinational companies from industries such as oil and gas, energy, chemical, food, pharmaceuticals, biotech, steel, aviation, auto, electronics, telecommunications, and information technology. In order to provide them with the best service, Kasznar counts on some of the best professionals in the market. Today, with offices in Rio de Janeiro, São Paulo, and Port Alegre, our firm has 14 partners and 190 employees besides professional partnerships in all Brazilian states.
Why the reference to 1919?
Kasznar Leonardos inherits almost a century of expertise in the provision of Intellectual Property services. A story that is worth remembering.
In 1919, the American lawyer Richard P. Momsen founded his law firm in Rio de Janeiro, which later became Momsen Harris. Simeon W. Harris, his first partner, was a descendent of American immigrants who arrived in Brazil after the Civil War. In 1927, Thomas O. Leonardos joined the firm, which, in 1944, turned into Momsen, Leonardos & Cia.
Richard P. Momsen arrived in Brazil in 1913. Within a few years, Momsen founded a law firm with four independent offices and helped to create two American Chambers of Commerce, dedicating his life to provide services for both Brazil and the United States.
Simon W. Harris was born in Americana, in the State of São Paulo, in Brazil. In the beginning of the 20th century, Harris moved to Rio de Janeiro, where he founded his own law firm and later came to establish, in partnership with Momsen, the firm Momsen Harris, trademarks and patent agents.
With Greek ancestry, Thomas O. Leonardos joined Momsen Harris in 1927, right after Law School graduation. Soon, he became the Head of the firm’s Law Department.
After the death of Simon W. Harris, in April 3, 1944, the name of the firm was changed to Momsen, Leonardos Cia, which had, at that time, four partners: Richard P. Momsen, Thomas O. Leonardos, Wilson B. de Oliveira and José Maciel de Oliveira.
By the end of the 1950s, a second generation of partners joined the firm. During years of distinguished service to ML&Cia, Tomaz Francisco Leonardos and his brothers Luiz and Maurício, together with Carlos Henrique Fróes and Walter Pinho, have consolidated the standards of excellence for which the firm is currently known.
During the 1990s, the firm welcomed a new generation of partners. Flávio, Filipe, Gustavo and Gabriel, representing the third generation of the Leonardos family, together with Elisabeth Fekete, started working in the Trademark Department. Also, Denise Dale, the daughter of José Maciel de Oliveira and now retired, became a partner at the firm’s Patent Department. A few years later, Gustavo Barbosa, Eduardo Rosman, and João Luís Vianna joined Denise as partners in charge of the Patent Department.
With an IP expertise recognized in Brazil and abroad, Momsen, Leonardos & Cia was noted one of the three most admired firms in the country in the subject of Intellectual Property by the Brazilian publication Análise Advocacia, specifically in its 2008, 2009, 2010 and 2011 editions.
One of the founders of Momsen, Leonardos & Cia, Thomas Othon Leonardos (1906-1990) is the father of Kasznar Leonardos's consultant, Mauricio Leonardos, and of the former consultant Tomaz Francisco Leonardos. Thomas Otton was the grandfather of the lawyers Gabriel and Filipe Leonardos.