What is the fee for the EU patent application stage?

According to the new version of the European Patent Treaty, when filing a patent application in Europe, the number of claims will generate a claim surcharge. At the same time, the identification requirements for filing patent applications in Europe no longer only include patent claims. Therefore, when filing a patent application, the first filed claim shall prevail. Where an international patent application submitted through the Patent Cooperation Treaty (PCT) enters the European stage, the patent claim submitted at the time of entry or after entry shall prevail. In April, 2002, after 1 and 2065438, the claim surcharge stipulated that the cost of each claim after 15 was 225 euros, and the cost of each claim after 50 claims was 555 euros. If the number of claims is 18, and the number of claims exceeding 15 is 3, a claim surcharge of 675 euros will be generated. Therefore, considering the cost, it is suggested to limit the number of claims to 15, or try to limit the number of claims exceeding 15 to save costs. It should be pointed out that according to the new rules, the original claims that limit the number of claims can be attached to the end of the specification. This can not only save costs, but also serve as the basis for subsequent modifications as needed. At the same time, if all the contents of the claim are written in the "Summary of Invention" section and briefly explained, it is unnecessary to attach the claim to the specification. In addition, when the PCT international patent application enters the European stage, multiple claims can be summarized in one claim in the form of "priority", thus reducing the number of claims.