PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Prior art searches are conducted using the patent databases of the United States Patent and Trademark Office (USPTO), esp@cenet and Patent Abstracts of Japan (PAJ), as well as paid databases and those accessed through the Internet, such as Dialogue, STN and Science Direct, through major Colombian universities.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wipo.int