Our study was founded by Juvenal Donoso and Sara Díaz in 1982, under the name of “SERMACO”; trajectory that has positioned us as a law firm with more than 35 years of experience in Registries Marcarios.

Over the years, our representation gained presence in Latin American and US countries. UU., Managing to include different edges of Industrial and Intellectual Property, as well as other areas of Law, such as: Labor Law and Corporate Services. This expansion was born from needs created by our customers, which has added value to our service proposal.

In 2015, in response to the expansion of our services, we began the search for a new identity; Defining our stamp for the future with the DÍAZ DONOSO Y CÍA brand, which includes Partner Ángelo Donoso, who opened a space for representation in Europe, which allows us to cover national and global requests from our clients and potential clients.

Our values


Customer Orientation


Human Value


Professional Ethics

Our premise is based on providing personalized and close attention, giving our clients and collaborators the respect for professional ethics, commitment for the vocation and high human quality; values ​​that have become a tradition for DÍAZ DONOSO Y CÍA.

Our approach is aimed at being something more than a law firm; we are concerned about becoming “Consultores – Asesores” every day, performing an integral service, always trying to exceed the expectations of our clients.

Our clients