Chip maker Marvell Technology Group lost a patent case brought by Carnegie Mellon University. Marvell said it would fight the verdict. The university was awarded $1.17 billion by a federal jury, which found Marvell sold billions of semiconductors using technology developed at the school without a license. Carnegie claimed Marvell infringed on patents relating to technology for increasing the accuracy with which hard drive circuits read data from high-speed magnetic disks. Marvell said it had not used the school’s technology and that those patents were invalid because similar systems had been developed elsewhere and before the school filed for its patents.