About: http://webisa.webdatacommons.org/271611531

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Although the Patent and Trademark Office grants several types of patents, this indicator includes only utility patents, commonly known as patents for inventions.
http://www.w3.org/ns/prov#wasQuotedFrom	nsf.gov