FREE ONLINE PATENTS
To see if your idea has been patented overseas, you may consider searching the free online patent collections of the following Intellectual Property Offices.
Patentscope database provides access to published international Patent Cooperation Treaty (PCT) applications in full text format. Information may be searched by entering search terms, names of applicants, international patent classification and many other search criteria in multiple languages.
USPTO database provides access to patents and published patent applications in United States of America. Patents from 1790 to present and published patents applications from 2001 to present can be searched through this database.
Espacenet from the EPO offers access to patents from around the world. English machine translations of patent specification into various languages are also available.
IPONZ patent database provides access to patents and published patent applications in New Zealand.
Ipsum is an online service that lets you search for information on UK patent applications and granted patents.
CIPO's patent database provides access to patents issued in Canada. The database allows for search to be conducted in English and French.
JPO's online searchable database, Patent Abstracts of Japan (PAJ) provides access to patents issued in Japan since 1976. Machine English translations of specifications are also available.
SIPO database provides access to patents issued in China. The database also provides English language machine translation of patent specifications.
KIPRIS database provided by the KIPO is an internet-based patent document search service covering publications of Korean applications and patents since 1996. You can also access English language machine translations of Korean patents.
Please note: We have provided a link to the following sites because it has information that may be of interest to our users. We do not endorse the views expressed or the facts presented on these sites. Further, we do not endorse any commercial products that may be advertised or available on these sites. Each site provides its own user support and we are not responsible for any database outages. Please note this is not an exhaustive list of IP Offices. For any specific assistance or to seek advice you can contact an IP professional.