The case has been brought by Apple, but both companies are using it to claim that the other has stepped on multiple patent toes.
Last month, Samsung successfully added the iPhone 5 to its list of devices it has a problem with – it's pretty safe to assume that no Apple or Samsung mobile device will pass unsullied by the patent claims.
It's all just part of the pre-game entertainment though, as the actual lawsuit isn't set to hit court until 2014.
Samsung will be hoping for a better outcome than the last patent dispute tried in the US; the courts sided with Apple and Samsung had to cough up damages to the tune $1.05 billion.
From The Verge