ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,443, issued on Feb. 3, was assigned to Chunqiao Han (Shenzhen, China).
"Vegetation maintenance system" was invented by Owen Emanuel Richards (Victoria, Australia) and Chunqiao Han (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vegetation maintenance system includes a permeable curb, a water-diversion layer, a water-storage layer, a nutrient layer, and a vegetation-planting trough. The permeable curb is located abutting roadside pavement edge of a road along a road direction. The water-diversion layer is located on a side surface of the permeable curb and is disposed close to a bottom of the permeable curb. The water-storage layer i...