ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,682, issued on Nov. 18, was assigned to Peridot Print LLC (Palo Alto, Calif.).

"Three-dimensional printing with pore-promoting agents and acidic agents" was invented by Emre Hiro Discekici (San Diego), Shannon Reuben Woodruff (San Diego), Dennis J. Schissler (San Diego) and Graciela Emma Negri Jimenez (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure includes a multi-fluid kit for three-dimensional printing. The multi-fluid kit can include a fusing agent comprising water and a radiation absorber that absorbs radiation energy and converts the radiation energy to heat, an acidic agent having a pH from about pH 1 to about...