The Leahy–Smith America Invents Act (AIA) is a United States federal statute that was passed by Congress and signed into law by President Barack Obama on September 16, 2011. The law represents the most significant legislative change to the U.S. patent system since the Patent Act of 1952 and closely resembles previously proposed legislation in the Senate in its previous session (Patent Reform Act of 2009).
Named for its lead sponsors, Sen. Patrick Leahy (D-VT) and Rep. Lamar Smith (R-TX), the Act switches the U.S. patent system from a "first to invent" to a "first inventor to file" system, eliminates interference proceedings, and develops post-grant opposition. Its central provisions went into effect on September 16, 2012 and on March 16, 2013.
Provisions
First to file and grace period
The law switched the U.S. rights to a patent from the previous "first-to-invent" system to a "first inventor-to-file" system for patent applications filed on or after March 16, 2013. The law also expanded the definition of prior art used in determining patentability. Actions and prior art that bar patentability under the Act include public use, sales, publications, and other disclosures available to the public anywhere in the world as of the filing date, other than publications by the inventor within one year of filing (inventor's "publication-conditioned grace period"), whether or not a third party also files a patent application. The law also notably expanded prior art to include foreign offers for sale and public uses. Applicants that do not publish their inventions prior to filing receive no grace period.
Proceedings at the U.S. Patent Office for resolving priority contests among near-simultaneous inventors who both file applications for the same invention ("interference proceedings") were eliminated, because priority under the Act is determined based on filing date. An administrative proceeding—called a "derivation proceeding," similar to that currently used within some interference proceedings—is provided to ensure that the first person to file the application is actually an original inventor, and that the application was not derived from another inventor.
The AIA refers to the new regime as "First-Inventor-to-File (FITF)". This new regime operates differently from the "First-to-Invent" (FTI) regime previously in effect in the U.S. and the various "First-to-File" (FTF) regimes in place in the rest of the world. Different outcomes can occur under each of these three different regimes, depending on whether and how two different inventors publish or file patent applications.
Opposition procedures
The Act revised and expanded post-grant opposition procedures. The Act retained existing ex parte reexamination; added preissuance submissions by third parties; expanded inter partes reexamination, which was renamed inter partes review; and added post-grant review.