ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,881, issued on June 16, was assigned to Wooting Technologies B.V. (Ermelo, Netherlands).

"User input unit" was invented by Johannes Jacobus Maria Langelaan (LV Ermelo, Netherlands), Calder Nicolaas Limmen (LV Ermelo, Netherlands), Erik Arnoldus Wilhelmus Stakenborg (LV Ermelo, Netherlands) and Kuo-Ming Wang (LV Ermelo, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a user input unit comprising a housing configured to be attached to a base of a user input device, such as a keyboard. The input unit also has a first movable element coupled to the housing, the first movable element being movable along a first directi...