“Utility Model” is called “utility solution” in Vietnam. The fields covered by patents for invention and patents for utility solution are the same. During prosecution, a patent application for invention may be converted into a patent application for utility solution and vice versa.
Differences with patents for invention are:
- The requirements for invention are novelty over the world, inventive step and industrially applicable, while the requirements for utility solution are novelty over the world, industrially applicable and that the utility solution is not ordinary knowledge. (Inventive step is replaced by “not ordinary knowledge“).
- The period of protection is 20 years for patents for invention from the filing date, while it is 10 years for patents for utility solution from the filing date.
- The deadline for filing a request for examination in a patent application for invention is 42 months from the earliest priority date, while it is 36 months for a patent application for utility solution.