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Formal complaint / feedback

Use the below form to submit either an official complaint or feedback relating to any of our products or services. If you send us an official complaint, you will receive a detailed reply and as a rule, a copy of the complaint form and our reply will be included in the public part of the file. If you provide us with feedback, you will not get a reply and it will not be included in the public part of the file. Read more

This contact form has no legal validity in proceedings under the EPC or PCT. Read more 



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