1. Inventions for Products, Compositions, Processes, Uses, Apparatuses, etc.
    Highly advanced creation of technical ideas utilizing the rules of nature (Art. 2)
    Mere discovery of a law of nature does not constitute the creation of a technical idea.

2. Unpatentable Matters
    Inventions that contravene public order or customs, or injure public health

1. Industrial Applicability
    A patentable invention must be industrially applicable (Art. 29).
    An invention involving the human body in its indispensable constituent features-such as diagnosis
    and medical treatment for human beings-is not "industrially applicable,¡± and so is not patentable.

2. Novelty
    An invention is patentable unless it falls under the following:
    (i) it was publicly known in the Republic of Korea prior to the filing of
         the application [Art. 29(1)(i)]
    (ii) it was described in a publication distributed in the Republic of Korea or in a foreign
         country prior to the filing of the patent application [Art. 29(1)(i)(¥¢)]

3. Inventiveness
    A patent shall not be granted for an invention that could have been easily made prior to the filing of
    the patent application by a person having ordinary skill in the art to which the invention pertains.

1. First-to-File Rule
2. Publication of Unexamined Application
3. Request for Examination
4. Post-Grant Opposition System