ALEXANDRIA, Va., June 4 -- United States Patent no. D1,077,857, issued on June 3, was assigned to Caterpillar Inc. (New York Avenue, Wash.).

"Cooler" was invented by Harika Sutari (Dunlap, Ill.) and Dongming Tan (Dunlap, Ill.).

The patent was filed on Nov. 8, 2019, under Application No. D/712,474.

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