The identification information (typically the patent number, or number and name) for a cited patent.
This element may be used in bibliographic references <citation> and <nlm-citation>. For extensive examples of formatted <nlm-citation>s including use of <patent>s in <nlm-citation>s, see: Sample PubMed Central Citations. To see tagged versions of these examples, see: Sample PubMed Central Citations - XML Tagged.
Text, numbers, or special characters.
<nlm-citation citation-type="patent">
<person-group person-group-type="inventor">
<name>
<surname>Blanco</surname>
<given-names>Ernesto E</given-names>
</name>
<name>
<surname>Meade</surname>
<given-names>John C</given-names>
</name>
<name>
<surname>Richards</surname>
<given-names>William D</given-names>
</name>
</person-group>
<collab collab-type="assignee">Ophthalmic Ventures</collab>
<article-title>Surgical Stapling system</article-title>
<source>US patent</source>
<patent>4,969,591</patent>
<year>1990</year>
<month>11</month>
<day>13</day>
</nlm-citation>
references.ent