ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,813, issued on March 3.

"Osmosis kit with U-tube apparatus and methods of using thereof" was invented by Esther Lan (Rancho Palos Verdes, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A complete kit, including components to assemble a U-tube apparatus, materials, and methods of using thereof, for the purpose of osmosis pedagogy, is described. The self-contained kit makes possible hands-on osmosis experiments that may be conducted safely at home, and is well-suited for STEM (science, technology, engineering and mathematics) education. The kit supplies unmodified glycerin and unmodified dextran as solutes, and components to assemble a watertig...