PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In this case, the object of study concerned secondary patents, that is, patents that are motivated, in part, by those that cover either base compounds (or further modified forms), ???new??? medical uses, compound combinations, dosage requirements, and process patents, among other types of patents that have the collective effect of extending the ???life cycle??? of a particular invention.
http://www.w3.org/ns/prov#wasQuotedFrom
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