Leahy–Smith America Invents Act
The Leahy–Smith America Invents Act (AIA) is a United States federal statute that was passed by Congress and was 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.
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United States
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Q11696
President
Concept
Q76
Barack Obama
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Q3039740
U.S. patent system
Concept
Q7144464
Patent Act of 1952
UNK
Q3039740
Patent Reform Act of 2009
Concept
Q59315
Patrick Leahy
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Q29552
D
Concept
Q16551
VT
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Q685149
Lamar Smith
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Q29468
R
Concept
Q1439
TX
LOC
Q5454262
"first to invent" to a "first inventor to file" system
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Q13847185
interference proceedings
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Q6509276
Leahy–Smith America Invents Act
PER
2011-09-16T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
September 16, 2011
DATE
1952-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1952
DATE
2009-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2009
DATE
2012-09-16T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
September 16, 2012
DATE
2013-03-16T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
March 16, 2013
DATE
country
office held by head of government
country of citizenship
position held
member of political party
member of political party