
Patent Award Marks Key Milestone for Delta Development Team’s Autonomous Portable Refrigeration Unit
TUCSON, Ariz., March 4, 2026 /PRNewswire/ — Delta Development Team, Inc., an industry leader in ruggedized thermal systems for medical and emergency applications, announced that the United States Patent and Trademark Office (USPTO) has issued U.S. Patent No. 12,566,016 covering its groundbreaking Autonomous Portable Refrigeration Unit (APRU-6L).








