In Terms of Patent Protection the United States Still Follows

Multiple Choice

In terms of patent protection the United States still follows the ________ rule rather than the ________ rule followed by some other countries

A) first-to-invent; first-to-file
B) first-to-file; first-to-invent
C) first-to-file; first-to-perfect
D) first-to-invent; first-to-perfect
E) first-to-perfect; first-to-invent