Mealey's (March 23, 2018, 2:31 PM EDT) -- DENVER — A federal magistrate judge in Colorado on March 9 defined disputed terms in a fracking patent dispute and determined that the patent in question was not invalid due to “indefiniteness,” as was argued by a company that was sued for patent infringement (Frac Shack Inc. v. Fuel Automation Station LLC, et al., No. 16-2275, D. Colo.; 2018 U.S. Dist. LEXIS 39505)....