ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,721,332, issued on Sept. 1.
"Charge controlled biocide apparatus and method of use thereof" was invented by Marion L. Chiattello (Cedar Falls, Iowa) and Mark Oman (West Des Moines, Iowa).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention comprises a method and apparatus for dispensing a biocide, comprising: a container and a biocide formulation in the container, the biocide formulation comprising: (1) the biocide and a solvent, the biocide comprising a protonated polymer comprising repeating charged units; (2) a total cationic charge density in a range of 0.005 to 0.95 meq/g, at least ten percent of the total cationic charge density from charge...