ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,739, issued on March 3, was assigned to Nano and Advanced Materials Institute Ltd. (Hong Kong, Hong Kong).
"Fatigue-resistant flexible road structure" was invented by Lai Ming Gordon Leung (Hong Kong, Hong Kong), Ho Him Chan (Hong Kong, Hong Kong), Zhihua Xiao (Hong Kong, Hong Kong) and Man Lung Sham (Hong Kong, Hong Kong).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fatigue-resistant flexible road structure that includes one or more sub-base structural support layers positioned over a compacted earth foundation. At least one of the sub-base structural support layers is an elastic sub-base layer for more completely distributing surface loads. The...