Copyright 2018 Stetrix, Inc. All rights reserved. Hem-Avert and TRS are registered trademarks of Stetrix, Inc. Device or Use Protected by one or more of the following U.S. Patents: 9,408,741; 9,144,423; 8,888,719; 8,881,732; 8,684,954; 8,597,306; 8,596,280; 8,123,760; 8,066,009; 7,766,931; 7,673,633. Other patents pending.