ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,352, issued on May 27, was assigned to castus GmbH & Co. KG (Germany).

"Door device for connecting a container to an isolation chamber" was invented by Christoph Maier (Dettingen an der Iller, Germany) and Andreas Mayer (Ingoldingen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A door device for connecting a container having a container flange with a plurality of radial flanges distributed around its circumference to an isolation chamber includes a door reversibly movable from a closed position, in which it closes a passage opening of the door device, to an open position, in which it uncovers the passage opening, and an interface of a clos...