ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,627, issued on June 23, was assigned to Symrise AG (Holzminden, Germany).

"Biodegradable polyurea/polyurethane microcapsules" was invented by Julian Alexander Georgi (Holzminden, Germany), Britta Raabe (Munden, Germany), Benjamin Rost (Bodenwerder, Germany), Andreas Vogel (Stadtoldendorf, Germany), Ralf Bertram (Holzminden, Germany), Daniela Gregor (Bevern, Germany), Christina Koepke (Holzminden, Germany), Stefanie Bargsten (Steinheim, Germany) and Patrick Ott (Holzminden, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process for the preparation of biodegradable polyurea/polyurethane microcapsules, prefera...