ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,419, issued on Jan. 13.
"Self-heating or self-cooling system and method" was invented by Andrew Jhonnie Spencer (Bronx, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A self-heating or self-cooling system and method for providing instant cooling or heating to a product or a surrounding area. The system can include an outer container that is configured to slidably receive an inner container. A piercing member extends from a bottom wall of the outer container and is configured to pierce, break or rupture a sealed end of the inner container so that at least two separate liquids can mix to either create an exothermic reaction that produces heat or ...