The Espacenet application has found that you are either accessing the system too rapidly or that your searches are too generic.
Espacenet may reject your requests if you perform too many queries per minute or generate queries that result in the system attempting to retrieve unusually large numbers of documents.
Multiple users behind a firewall may be seen as a single user who apparently generates many queries in a short time or who downloads excessive amounts of data.. As a result you will receive a rejection message.
If you are behind a firewall and this happens please contact us and send us
We will analyse the information you send us and if necessary contact your IT department to try to resolve the situation.
For more information please click on the "terms and conditions of use for Espacenet" link at the bottom of the home page.
NOTE: For users who require large amounts of family, legal or bibliographic information, we have developed the Open Patent Services, a Web Services-based alternative that offers the same data routinely available via espacenet, but in XML format.