BTND, LLC is a wholly owned subsidiary of STEN Corporation. The company operates Burger Time fast food drive-through restaurants. In addition to BTND, the STEN Corporation provides contract-manufacturing services for surgical instrument sterilization container systems. Through its LifeSafe Services subsidiary, the company provides business customers emergency oxygen equipment and related emergency- preparedness products and services. It also develops, manufactures, assembles and markets single-use disposable medical supplies and surgical devices. BTND is located in West Fargo, N.D.