The patent laws are codified in Title 35 of the U.S. Code. The first act was passed in 1790, and there have been 4 major revisions or codifications: 1793, 1836, 1870, and 1952. The official title of the current law is the Patent Act of 1952, as amended.
Online sources include:
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This link opens in a new windowTo compile a legislative history for patent legislation, you can use general legislative history sources (see the LibGuide on Federal Legislative History for instructions).
Other sources that provide the full text of legislative history documents include: