ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,704, issued on Sept. 16, was assigned to TK Home Solutions B.V. (Krimpen aan den IJssel, Netherlands).
"Method to operate a stairlift" was invented by Cornelis Boxum (Delfgauw, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments described herein are directed to a method to operate a stairlift, wherein the stairlift includes a guide extending along the staircase, a carriage moveable along the guide and configured to carry a person, and user interaction device for operating the stairlift. At least a first speed profile defining a movement of the carriage at positions along the guide is set. The first speed profile is associated to ...