02.13.13
• US Patent No. 8,337,819 B2; Tomas Bernardo Galvan of Santiago, Chile has been awarded a US patent for an oral hygiene composition for the treatment of periodontal illnesses and halitosis. It consists of, in demineralized water, a mixture of hydrogen peroxide, eugenol, p-chlorophenol, camphor, maltitol, coloring matter and flavor.