http://www.goinglegal.com en-us editorial@articlealley.com Technically when someone manufactures or sells an item that uses patented technology that person would be in infringement of the patent. If patent infringement does occur, the unauthorized user may receive a cease-and-desist letter by the owner of the pat... http://www.goinglegal.com/explaining-patent-infringement-1466092.html 24th March 2010