There are different legal grounds depending on the type of the licence:
- Compulsory licence due to the lack of exploitation of the patent by its holder:
Such licence is granted if the patent owner has not been exploiting or seriously preparing the exploitation of the patent, or has not been commercialising its patent enough in the EU for 3 years following the grant of the patent or 4 years following the publication of the patent application (Article L.613-12 of the French Intellectual Property Code).
- Compulsory licence in respect of dependent patents:
Such licence is granted when a person owns a patent that cannot be exploited without infringing a prior patent. If the authorisation of the prior patent owner is impossible to obtain amicably, the Court may grant a licence if the invention would bring significant technical progress and is of great economic interest (Articles L.613-15 and L.613-15-1 of the French Intellectual Property Code).
- Compulsory licence in the interest of public health:
Such licence can be granted, on any patent for: a) a drug, a medical device, an in vitro diagnostic medical device, a related therapeutic product; b) a process for obtaining them, a product necessary for obtaining them or a process for manufacturing such a product; c) an ex vivo diagnostic method, when the exploitation of this patent is contrary to the interest of public health or if the quality of quantity of the products based on this patent offered to the public are not sufficient or too expensive or if such exploitation constitutes anticompetitive behaviour (Articles L.613-16 and L.613-17 of the French Intellectual Property Code).
- Compulsory licence in the interest of the national economy:
Such licence is granted if the patent owner does not exploit (or not sufficiently exploit)
the patent. The Ministry in charge of industrial property matters (Minister of Economy) can order the patent owner to exploit the patent in order to “satisfy the needs of the national economy” and if after 1 year the exploitation is not done or not sufficiently, then an order can be issued to grant compulsory licences to third parties. (Article L.613-18 of the French Intellectual Property Code)
- Compulsory licence in the interest of the national defence:
Such licence can cover any patent or patent application and is granted if the French State claim it for itself or for an exploitation on its behalf in the interest of national defence. (Article L.613-19 of the French Intellectual Property Code)
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