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European patents

Cabinet Chaillot represents applicants before the European Patent Office for filing European patents and their prosecution, for filing oppositions against EP granted patents. We give you here the main steps of the prosecution, the elements required for filing a European patent or for the entry into EP phase of a PCT application, the validation requirements after the granting since the London Agreement...



Countries of the European patent

Latest news

04-2019 Referral to the Enlarged Board of Appeal related to plant patentability

The President of the EPO has submitted questions to the Enlarged Board of Appeal which relate to the patentability of plants exclusively obtained by...


02-2019 Exceptions to patentability

In decision T1063/18 rendered on 05/12/2018, the Board of Appeal asserted that Rule 28(2) EPC, that was introduced into EPC following decisions...


01-2018 Decision of the Enlarged Board of Appeal G 1/16 – Undisclosed disclaimers

As a reminder, the admissibility of disclaimers (negative limitations) is laid down in decisions G 1/03 and G 2/03 which stipulate...


02-2017 On 10/02/2017 Italy has ratified the Unified Patent Court Agreement

It is the 12th member state of the Unitary Patent project to do so. In order for the Unitary patent to enter into force, Germany and UK still have to...


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