ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,450,301, issued on Oct. 21, was assigned to Amazon Technologies Inc. (Seattle).

"Topics and sub-topics for presenting search results on a device" was invented by Phani Teja Anumanchupallik (Berkeley, Calif.), Shaunak Mishra (Jersey City, N.J.), Sarat Chandra Vadapalli (Sammamish, Wash.) and Anirban Sengupta (Sammamish, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques for providing information for presentation at a device are described. In an example, a computer system receives, from a device, a query indicating that item information is requested. The computer system determines a topic for the item information. The computer system determin...