ALEXANDRIA, Va., July 9 -- United States Patent no. 12,349,676, issued on July 8, was assigned to instrAction GmbH (Heidelberg, Germany).
"Particles with biocidal coating" was invented by Martin Welter (Neckargemund, Germany), Christian Meyer (Schwetzingen, Germany) and Kristian Lungfiel (Wiesbaden, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Process for the preparation of particles with antibacterial coating, which comprises the following steps: (a) providing an aqueous suspension containing a polyamine, a crosslinker and a porous organic or inorganic carrier material in particle form at a temperature lower than or equal to 10deg C. in a mixer for coating the inorganic carrier material with the p...