Apple initiated the litigation in April when it filed suit against Samsung in the United States alleging that the Samsung Galaxy infringed on its iPhone and iPad. In response, Samsung counterclaimed alleging that Apple infringed its patents. Now Samsung alleges that the iPhone 4S also infringes its patents covering WCDMA technology.
While Apple recently had favorable court rulings in Germany and The Hague which blocked Samsung products in those jurisdictions, the battle is far from over. For more information click here: Samsung Alleges iPhone 4S is a Patent Infringement