yes. An invention applicant may propose to change the type of invention from an invention to a utility model during the process of examining the application or within two months from the date of the final decision on the refusal to grant a patent. The utility model application shall be deemed to have been filed from the date of the invention application. A utility model application converted from an invention must fully meet the requirements for utility model documents.
1-6 months
yes. An invention applicant may propose to change the type of invention from an invention to a utility model during the process of examining the application or within two months from the date of the final decision on the refusal to grant a patent. The utility model application shall be deemed to have been filed from the date of the invention application. A utility model application converted from an invention must fully meet the requirements for utility model documents.
2-4 years
- via Paris Convention : 6 months from earliest priority date.
- Hague Agreement route: 6 months from earliest priority date.
- EU appearance route: 6 months from the earliest priority date.
The PPO only conducts formality examination of the design, and does not examine novelty and uniqueness.
- via Paris Convention : 12 months from earliest priority date.
- via Nationalization of PCT : 30 months from the earliest priority date.
- Validation of European Patent in EPO member states: 3 months from the date of European patent grant.
The PPO only conducts formality examination of utility model patent applications, only examines novelty and industrial applicability, and does not examine inventive step.
20 years
25 years
no