ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,298, issued on Sept. 30, was assigned to Chemische Fabrik Budenheim KG (Budenheim, Germany).
"Hydroxyapatite powder and method for producing same" was invented by Erhard Fischer (Ingelheim, Germany), Stefan Mallmann (Heidesheim, Germany) and Christian Litterscheid (Ober-Olm, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "In order to provide a hydroxyapatite that can be used without reservation in the food industry, a hydroxyapatite powder is provided composed of primary particles. The median size of the primary particles from which the powder is made is less than0.10 micro metre and the aspect ratio of the primary particles is greater than5...