Our associate Katherine González is publishing an article in the specialized media World Trademark Review in which she explains the new criterion of the SENADI (National Services for Intellectual Rights of Ecuador) regarding proving the use of a registered trademark through invoices. The article begins by detailing some aspects of Decision 486 of the Andean Community, which establishes that a trademark may be canceled if it has not been used during the last three years by its owner or by an authorized third party or a licensee in any country of the Andean Community (Ecuador – Colombia – Peru – Bolivia), for the products or services for which it was