First to file and first to invent

（重定向自First to invent）

First to file (FTF) and first to invent (FTI) are legal concepts that define who has the right to the grant of a patent for an invention. The first-to-file system is used in all countries, including the United States, which switched to a first-inventor-to-file (FITF) system on March 16, 2013 after the enactment of the America Invents Act.

单词	First to invent
释义	First to invent 原声例句英国原版语文第六册 We have first to invent our tools, then to fashion them, and then to learn how to handle them. 所以人类生来就要先发明工具，然后改造工具，最后学会使用工具。英语百科 First to file and first to invent （重定向自First to invent） First to file (FTF) and first to invent (FTI) are legal concepts that define who has the right to the grant of a patent for an invention. The first-to-file system is used in all countries, including the United States, which switched to a first-inventor-to-file (FITF) system on March 16, 2013 after the enactment of the America Invents Act.
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