US Patent 11647819 Tension spring assisted protective cover

A protective and/or ornamental case for a foldable handheld electronic device. The case includes a front shell and a back shell pivotally connected to a hinge cover by one or more coupling mechanisms. A first portion of an electronic device is inserted into the front shell and a second portion of the electronic device is inserted into the back shell. The coupling mechanisms retain the front and back shells operatively engaged with the hinge cover as the electronic device housed in the case is pivotally or hingedly opened and closed, help prevent unintended opening or closing of the device, and keep the device open or closed when so positioned by a user.