Dugway, Biological and Chemical weapons testing, mainly in the area of wind dispersment pattersn (studies of how to respond to attacks, as well as antidote research.
One of the finest companies of Reservist Marines in the country.
Telvision. Well, I'll admit that Philo Farnsworth may not have been the direct contribute to telvision, that is debatable. He developed the concept paralell (but not cooperatively) with another inventor.
M2 .50 Machine Gun
BAR 1919 and derived weapons (M249 SAW, etc.)
1911 pistol and derived weapons (Glock, etc.)
All developed by John Moses Browning (a Mormon) in Ogden
The University of Utah has one of the top med programs, resulting in skilled medical technicians, hence saving lives.
BYU (as much as I despise it) contributes much to the historical research field, leaving it's collection of ancient documents open. It also works with respected old world archaeologists to uncover some of the history of the Holy Land, which is something vital to current events. By no means are they THE authority, but some work has been done that would be difficult and not done yet without them.
Maddox
Myself
Other things too, but I am getting lazy and I do not feel well. I am having trouble typing.