US Patent Issued to VERSITECH on Dec. 9 for "Gravity-driven chitosan-enhanced melamine sponge for stable ultrafast filtration" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,509, issued on Dec. 9, was assigned to VERSITECH Ltd. (Hong Kong, Hong Kong).

"Gravity-driven chitosan-enhanced melamine sponge for stable ultrafast filtration" was invented by Xiaoyan Li (Hong Kong, Hong Kong) and Haibo Li (Hong Kong, Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "Devices and methods related to a chitosan-enhanced melamine sponge are provided. A method comprises grafting chitosan on the melamine sponge matrix via the chemical with two or more carboxyl groups; and crosslinking the chitosan with crosslinker under a heating procedure to make a more robust melamine sponge with a larger surface and smaller pores. The chitosan-e...