• 1
    Current Enquiry
  • 2
    Personal data
  • 3

Formal complaint / feedback

Use the below form to submit either an official complaint or feedback relating to any of our products or services. You will receive a substantiated reply from us. As a rule, a copy of the complaint and our reply will be included in the public part of the file. If you provide us with feedback, this 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 



Application/publication type
Have you raised this particular issue with the Office before?
Your preferred language for reply