Mealey's (February 25, 2016, 2:46 PM EST) -- DENVER — A Colorado federal judge on Feb. 23 denied a motion for a preliminary injunction filed by Red Robin International Inc. in its trademark infringement lawsuit against a Pennsylvania-based former franchisee (Red Robin International Inc. v. Lehigh Valley Restaurant Group Inc., et al., No. 15-cv-02602, D. Colo.; 2016 U.S. Dist. LEXIS 22437)....