The patent war between NVIDIA and Samsung isn't going to wind down any time soon. Samsung has backed up its countering lawsuit against NVIDIA with a US International Trade Commission complaint asking the agency to block imports of NVIDIA's GeForce graphics chips and Tegra mobile processors. While it's not clear just which parts are under scrutiny, the dispute names a slew of third-party device makers who'd have to stop selling hardware in the US. Most of them are video card designers, such as Biostar and EVGA, but the action would also affect Tegra-based gadgets like OUYA's mini console and the Wikipad gaming tablet.