ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,031, issued on March 18, was assigned to Wonderland Switzerland AG (Steinhausen, Switzerland).
"Play yard" was invented by Jonathan K. Mountz (Birdsboro, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A play yard, configurable to an unfolded position or a folded position, is provided. The play yard includes two brackets, two rail members and two support frames. The two rail members are pivotally connected to the brackets. Each of the support frames includes two upper support members and a lower support member. The upper support members are pivotally connected to the brackets. The lower support member is pivotally connected to the upper support ...