What are criteria a patent needs to be protected?

-An invention shall be deemed to be of an inventive nature if, based on technical solutions already publicly disclosed by use or by means of a written description or any other form either inside or outside Vietnam prior to the filing date or the priority date as applicable of the application for registration of the invention, the invention constitutes inventive progress and cannot be easily created by a person with average knowledge in the art;

Read more: What Are Condition, Procedures and Period of Vietnam Patent Registration?