ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,900, issued on March 17, was assigned to WONDERLAND SWITZERLAND AG (Steinhausen, Switzerland).

"Travel system having a child carrier with handle that extends and/or rotates" was invented by Daniel A. Sack (Mohnton, Pa.), Patrick J. G. Bowers (West Chester, Pa.), Curtis M. Hartenstine (Birdsboro, Pa.), Andrew J. Horst (Morgantown, Pa.), Colin F. Eggert-Crowe (King of Prussia, Pa.) and Lance J. Clemmer (Mohnton, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one example, a travel system has a child carriage and a child carrier that removably couples to the child carriage. The carriage has a frame and wheels attached thereto. The carrier has a ...