Pursuant to the provision of Article 93 of the Patent Act, a utility model refers to any creation of technical concepts by utilizing the rules of nature, in respect of the form, construction or installation of an article. Thus, it can be defined that a utility model is a creation of technical concepts that utilizes the rules of nature to reflect the innovation of a form, construction, or installation of an article that possesses a new purpose or improved efficacy.
Source: TIPO website