As a cattle rancher in Montana, Gerald Good used handheld searchlights to find and help calving animals in harsh blizzard conditions. Good thought that it would be more helpful to have a portable searchlight mounted on the outside of vehicle and remotely controlled. He and

Al Ged developed and patented practical applications of this idea-the Go light and the wireless, remote-controlled Radio Ray, which could rotate 360 degrees-and formed Go light, Inc., to make and market these products. In 2007, five years after the patent was approve, Wal-Mart

Stores, Inc. began selling a portable, wireless, remote controlled searchlight that was identical to the Radio Ray except for a stop piece that prevented the light from rotating more than 351degrees. Go light sent Wal-Mart a letter, claiming that its device infringed Go light’s patent.

Wal-Mart sold its remaining inventory of the devices and stopped carrying the product. Go light filed a suit in a federal district court against Wal-Mart alleging patent infringement. How should the court rule? Explain fully