ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,328, issued on March 31, was assigned to Onza Corp. (Denver).

"System for producing ozone-infused crystalline solids" was invented by Paul Mendell (Castle Rock, Colo.), Stephen Goldman (Denver) and Eric Anderson (Denver).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems are provided for infusing a crystalline and/or porous solid with a desired fluid, particularly an antimicrobial agent, as well as infused crystalline and/or porous solids produced thereby. Solids which may be infused with an antimicrobial agent according to the invention include erythritol, table salt, table sugar, baking soda, calcium carbonate, acetic acid, ascorbi...