Article 1 d)
d) Utility model: an invention that gives an object or part of an object a shape, structure, mechanism or layout which functionally increases its utility or improves the conditions of its manufacture;
Article 89 Requirements
Every new invention that involves a significant inventive activity and is capable of industrial application shall be eligible for protection as a utility model.
Article 90 Inventive activity
For the purposes of this chapter, an invention shall be considered to involve an inventive activity if it functionally increases the utility of an object or improves the conditions of its manufacture.
Article 91- Application of the provisions on patents
Except for the provisions of the preceding article, the provisions in respect of patents for inventions shall apply, with the necessary changes, to utility models and to applications in respect of utility models, provided that such provisions are not incompatible with the specific characteristics of utility models.