Under the Mexican Industrial Property Law trade names are published rather than registered, as happens with service marks. The difference between a publication and a registration basically consists in the rights derived from the legislation. While the exclusive right to use a service mark is granted only by means of a registration, a trade name does not require a registration to produce legal effects against third parties. Indeed, according to the Law, trade names are protected by virtue of their use without the benefit of a registration. The purpose of the publication is only to establish a presumption of good faith in the adoption and use of the trade name. Accordingly, use of a trade name is essential to produce its legal effects.