ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,716, issued on Feb. 17, was assigned to ENTEGRIS INC. (Billerica, Mass.).

"De-powdering of green samples using freezing method for additive manufacturing" was invented by Thines Kumar Perumal (Singapore), Subhash Guddati (Singapore), Aravind Vasanthakumar (Singapore), Montray Leavy (Singapore), Rocky Dean Gipson (Arroyo Grande, Calif.) and Edward A. Sturm (New Milford, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing an article and a system associated with the method are provided. The method includes providing a green part, cooling the green part to a temperature below the freezing point of the ink to form a hardened mass ...