Chicago Inno (April 29) -- An Internet of Things startup that helps farmers better manage their crops post-harvest, and a startup that has created a new type of polymer won the grand prize at University of Illinois Urbana-Champaign's Cozad New Venture Challenge this week. Amber Waves Grain, an agtech company, and Hindered Polyurea Technology (HPT), a polymer company, each won $20,000 plus space in EnterpriseWorks and legal resources. The two companies beat out four other finalists, 19 semifinalists, and over 120 startups that entered the competition in total.