ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,475,167, issued on Nov. 18, was assigned to Google LLC (Mountain View, Calif.).
"Efficient hash table lookup" was invented by Weiwei Jiang (Santa Clara, Calif.), Srinivas Vaduvatha (San Jose, Calif.), Prashant R. Chandra (San Jose, Calif.), Jiazhen Zheng (Santa Clara, Calif.), Hugh McEvoy Walsh (Los Gatos, Calif.), Weihuang Wang (Los Gatos, Calif.) and Abhishek Agarwal (Santa Clara, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hash table system, including a plurality of hash tables, associated with respective hash functions, for storing key-value pairs; an overflow memory for storing key-value pairs moved from the hash tables due to collision...