input: [Literature Type] Patents [Access] Patents are indexed by disciplinary indexing services and by online databases devoted entirely to patents. Patent documents are available for sale by the United States Patent and Trademark Office and through document delivery services. Full text of U.S. and other patents can also be read online through SciFinder Scholar. See a librarian for assistance in obtaining patent documents. [Description] 
output: A patent is an agreement with a government granting a person or organization ownership of a design or process for a designated period of time within that country. Most industrialized countries award patents, but they don't recognize patents from other countries. Patents usually include drawings and descriptive text.