ALEXANDRIA, Va., June 6 -- United States Patent no. 12,283,682, issued on April 22, was assigned to Illinois Tool Works Inc. (Glenview, Ill.).
"Thermal blocking sheet" was invented by Ignatius De Wilde (Rotterdam, Netherlands) and Jurgen Gebhard (Wuppertal, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A thermal blocking sheet for reducing the spread of fire or heat, the thermal blocking sheet comprising a first layer and a second layer of expandable graphite. If the thermal blocking sheet is exposed to heat exceeding a threshold temperature the expandable graphite is configured to expand."
The patent was filed on July 6, 2021, under Application No. 17/368,406.
*For further information, including ...