Under the AIA,
A person shall be entitled to a patent unless-(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention; or (2) the claimed invention was described in a patent … or in [a published] application … [that] names another inventor and was effectively filed before the effective filing date of the claimed invention.
35 U.S.C. 102(a) (2013).
The USPTO is now examining patents under this new standard. I would love to see a real world example of this law being applied in a way shows the difference between our new filing-date focus and the old invention-date focus. email@example.com