To grant and assure the right to exclusive use regarding an invention or an utility model, national legislation requires a patent to have the following requirements:
Invention: The technology must be capable of being employed in a manner to directly modify nature, in an economic activity, and cannot be an abstract concept, as theories, mathematical forms. There is an invention when there is a technical solution for a technical problem.
Novelty: The technology has not become accessible to public (state of the arts) in a way that a technician in the subject matter, having knowledge of such, could reproduce it.
Inventive Activity: The technology cannot be obvious for a technician in the subject matter, in a way that he is able to reproduce it based on already accessible knowledge. It cannot derive in an obvious manner from the state of the arts; for utility models, this requirement is considerable smaller and is named inventive act.
Industrial Use: The invention should be able to be produced or used in any field of industry. Or else, the invention, as described, should be subject to reproduction, its industrialization.
Enough Description: The patent should allow a technician in the subject matter to be able to reproduce the invention as described in its filing. The description report of the patent should be clear and comprehensible enough so a technician in the subject matter may reproduce it.