Search these databases:
To see if your idea has been
patented abroad, refer to searchable databases made
available from other International Intellectual Property Offices.
Many countries provide free online access to patent collections. Some available databases are:
For additional search resources, contact the local Patent and Trademark Depository Library, visit the USPTO Public Search Facility or the USPTO Main STIC Library. The staff in the Main STIC Library are experts on foreign patents and able to help the public as needed.