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The [[United States Patent and Trademark Office]] (USPTO) is the organization within the United States government that reviews and grants patents and trademarks. The USPTO is tasked with defining [[patent types]] and what each type covers and protects. Established under the Department of Commerce on July 19, 1952[https://www.federalregister.gov/agencies/patent-and-trademark-office] by 35 U.S.C. §1[http://www.gpo.gov/fdsys/pkg/USCODE-2013-title35/html/USCODE-2013-title35-partI-chap1-sec1.htm], the USPTO is intended to fulfill the mandate in Article I, Section 8, Clause 8 of the United States Constitution "to promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries."[https://www.constituteproject.org/constitution/United_States_of_America_1992]. Since 1790, the USPTO has issued more than 6.5 million patents[http://www.uspto.gov/about-us/news-updates/uspto-web-database-now-includes-all-patents-dating-1790]. The agency's main offices reside in Alexandria, Virginia, with several satellite offices around the country.