Data Collections These fields are in addition to Dublin Core fields to describe MDL's data collections, including microdata, statistical data, and GIS data. Links <a href="https://mdl.library.utoronto.ca/technology/text-data-mining-software/cipo-postgresql-database">PostgreSQL database</a> Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Canadian Intellectual Property Office (CIPO) Description An account of the resource The <a href="https://mdl.library.utoronto.ca/technology/text-data-mining-software/cipo-postgresql-database">Canadian Intellectual Property Office (CIPO) Patent PostgreSQL Database</a> is a metadata extract from CIPO's <a href="https://ised-isde.canada.ca/site/canadian-intellectual-property-office/en/patent-data-bibliographic-and-full-text-xml">IP Horizon's XML Databank</a> that contains information on almost 2.5 million patent documents filed in Canada. Data are available from 1870 to present, and include metadata as well as the full text of patent descriptions and claims information. These documents represent both patent applications and patent grants, as well as patents that have expired. Many patents provide references to equivalent patents filed in other countries, via the World Intellectual Property Office's (WIPO) Patent Cooperation Treaty (PCT).