This heading is used as a Publication Type. Patents as a subject are indexed under the main heading PATENTS AS TOPIC; INDEXER: Do not use
Scope Note
Work consisting of documents granted by a government giving exclusive rights to an inventor or assignee to manufacture, use, or sell an invention for a certain number of years.
Work consisting of documents granted by a government giving exclusive rights to an inventor or assignee to manufacture, use, or sell an invention for a certain number of years.