On June 23, the U.S. House of Representatives passed The Leahy-Smith America Invents Act, H.R. 1249, by a 304-117 vote. The vote follows the U.S. Senate’s March 95-5 vote for S.23, but differences between them mean the bills must be reconciled before becoming law.

Both bills would change the U.S. patent system from a first-to-invent system into a first-to-file system.