PREFIX core: <http://vivoweb.org/ontology/core#>
PREFIX rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX bibo: <http://purl.org/ontology/bibo/>

CONSTRUCT {
     ?date ?property ?object .
     ?precision ?property2 ?object2 .
} WHERE {
     PERSON_URI core:authorInAuthorship ?authorship . 
     ?authorship core:linkedInformationResource ?patent .
     ?patent rdf:type bibo:Patent .
     ?patent core:dateIssued ?date .
     ?date ?property ?object .
     ?date core:dateTimePrecision ?precision .
     ?precision ?property2 ?object2 .
}