Maintain patent protection
A patent can be maintained for 20 years.
If the patent relates to a medicinal or plant protection product, the term of the patent can in some cases be extended by five years, using supplementary protection.
The patent can cease to be valid when:
- the patent term has expired
- the annual fee has not been paid to PRV
- the patent owner requests that the patent be terminated
- the patent is revoked after opposition
- the patent is declared invalid by a general court, known as annulment
A patent application can be terminated through:
- being rejected by PRV
- being dismissed by PRV
- being withdrawn by the applicant who chooses to give up the exclusive right