US Patent Issued to DSM Sales & Manufacturing on June 10 for "Freeze-drying systems and methods" (Utah Inventors)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,326,298, issued on June 10, was assigned to DSM Sales & Manufacturing Inc. (Salt Lake City).

"Freeze-drying systems and methods" was invented by Douglas S. MacKay (Draper, Utah), Zakary D. MacKay (Saratoga Springs, Utah) and Nicholas S. MacKay (Saratoga Springs, Utah).

According to the abstract* released by the U.S. Patent & Trademark Office: "Devices, systems, and methods used to freeze dry a substance are disclosed. The devices and systems include a freeze dryer including a freeze-drying chamber, heating members, a refrigeration system, a vacuum pump, and a plurality of sensors disposed within the freeze-drying chamber. The freeze-drying methods include four main phases of freeze d...