ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,733,775, issued on Sept. 15, was assigned to Safeway Safety Step LLC (West Chester, Ohio).

"Bathtub door systems and methods" was invented by Christopher Brian Stafford (Liberty Township, Ohio), Michael Anthony Serraino (Cincinnati) and Bruce R. Slattery (West Chester, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bathtub that can include a U-shaped step saddle associated with a door assembly. The door assembly can include a hinge coupled with the U-shaped step saddle such that the door assembly can be transitioned between an open position and a closed position. The door assembly can include a catch and a latch to secure the door in the closed ...