US Patent Issued to CellMo Materials Innovation on Dec. 2 for "Method of making copper foam ball" (South Korean, American Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,480, issued on Dec. 2, was assigned to CellMo Materials Innovation Inc. (Conroe, Texas).

"Method of making copper foam ball" was invented by Hyeji Park (Seoul, South Korea) and Heeman Choe (Conroe, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A metal foam ball, several millimeters in diameter, is manufactured to have an open-pore structure to absorb fluid (e.g., gas and liquid) such as water or lubricant. As an example, a copper foam ball is manufactured via a freeze casting method using prepared oxide powder slurry where a spherical silica gel mold is used to freeze the slurry, which is subsequently dried at low temperature in vacuum and the...