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PCT patent

EPO is the ISA

You may calculate the official fees at a PCT application (international phase I). It is provided only for applicants from certain countries. We suppose that you file the application online, direct to International Bureau (IB) of WIPO, in English. Where you may choose the European Patent Office (EP) as International Searching Authorities (ISA), we recommend this.


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If you want to protect your invention in Europe, we recommend choosing EPO as ISA, because EPO does not accept the ISR of other authorities, so later you must pay for an additional EPO search. If the ISA is AT or SE, EPO makes only a limited additional search.

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