03/26/2026 – 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).
This patent secures the company’s intellectual property around its innovative portable refrigeration technology, marking a significant milestone in advancing cold-chain logistics for life-saving blood products, vaccines, and temperature-sensitive medical materials.