A curious legal battle is recently going on between two international music stars and an Californian company for filing of the trademark "Blue Ivy", which happens to be also the name of the Beyonce’s and Jay-z’s five-year-old daughter. The two singers had already tried, at the time of the baby's birth, to register her name as a trademark, but the LA based clothing company had entered an opposition, asserting its rights to the same name, which had been operating for three years before the child was even born. Today, Beyoncé and Jay-z have filed a new request for registration, adding to brand also the rapper's last name, Carter. This time, the brand, available for viewing on the US Patent and Trademark Office database, covers a wealth of product categories from the beauty market to childcare products, as well as DVDs, CDs, handbags, books and even gambling cards or " live music performances ". The registration request was originally filed in January 2016, but was only available for opposition on January 10 this year. In fact, the California based company has again moved to block this second application, claiming that the two famous parents would like to proceed with trademark registration only to prevent someone else from using the name of their child, without being able to provide the actual proof of use on the market. Indeed, contrary to what is provided in the Italian legal system, according to the United States trademark law, an essential requirement for registration of a trademark is the presentation, at the time of application, of a so-called "statement of use", demonstrating the use of the mark on the US market. If the applicant company is new on the US market, the trademark application is temporarily accepted. Within six months, the registration may be confirmed following the commercial “use test” in the United States. The test of use is made possible by the proof of the product’s sale, or with the printing of catalogs, with advertisements, etc. In Italy, however, the use of the trademark is not an essential requirement for its registration, but a condition for maintaining its validity. The legislator, in Article 24 of the IP Code, explicitly regulated the case of the trademark revocation for "non-use" if the holder of a trademark registered in a specific class didn’t use it for 5 years. In both cases, the ratio of this rule is to prevent anyone from make use of a distinctive sign without actually using it, withdrawing it from the market and preventing others from using it.