Spain: Just English or either include Spanish
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“During the negotiations, one of our proposals was either to include the Spanish language or to have just one official language: English. They didn’t approve either offer, so we stayed out.”The unitary patent favors the official languages of the EPO: English, German and French. Since the unitary patent is linked to the existing European patent, the unitary patent uses the same official languages. Spain, and also Italy, do not agree with this.
There may be some problems with the offers suggested by Spain. The EU cannot change the official languages of the EPO, since the European Patent Convention (EPC) is not an EU regulation but an international agreement. In fact some members of the EPC are not EU members. Changing the EPC, although possible, is a lengthy undertaking.
Realistically, one could at best desire that if a unitary patent is granted by EPO in a language different from English, then the proprietor should provide an English translation. However, a requirement like this has been adopted in the unitary patent. A request for unitary effect must include a full translation of the specification of the European patent into English if the language of the proceedings is French or German (Article 6(1)(a), Council regulation 1260/2012). Admittedly, this is only required during a transitional period (up to 12 years). To make things fair, you also have to submit a translation if the language of the proceedings was English, but in this case you can pick any official EU language you like.
After negotiations within the EU broke down, the EU used the--rarely used--possibility of 'enhanced cooperation' (Article 20 of the European Union Treaty). 'Enhanced' cooperation allows some member states to be excluded from the cooperation. In this case Spain and Italy who remained opposed to the new unitary patent were excluded. Italy has later rejoined the unitary patent system (while stressing that it remained opposed to the language regime).
Spain and (in part) Italy have complained about this with the EU Court of Justice. The court agreed that the Spanish language was treated differently, but that this was allowable if it this was needed to get a cost efficient system.
The absence of Spain from the unitary patent will force us to “reflect on the importance of the Spanish language and technology”, according to Garcia-Escudero. The absence of Spain, the fifth EU economy by GDP, is indeed regrettable and will make the unitary patent a bit less attractive. In any case it will force a proprietor of a unitary patent to reflect if it wants to additionally validate the corresponding European patent in Spain (this is allowed).
Italy has since decided that a strong patent that is valid European wide is too important, and has decided to join the unitary patent system after all even though it is not happy with the languages. Hopefully, Spain will do the same someday.