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USPTO Patent data
Linked Data version of the US Patent and Trademark Office (USPTO) data. Number of triples: 212,234,735. Number of resources: 3,215,768 Links to other datasets: DBpedia,... -
UMBEL (Upper Mapping and Binding Exchange Layer)
A lightweight, reference structure of 28,000 subject concepts for the Web. UMBEL is jointly developed and maintained by Structured Dynamics LLC and Ontotext AD. There is a total...