L-R: Adam R. Alper, Brandon H. Brown and Michael W. De Vries of Kirkland & Ellis. Adam R. Alper (from left), Brandon H. Brown and Michael W. De Vries of Kirkland & Ellis.

Motorola Solutions Inc. said Friday that it has won a $764.6 million trade secrets and copyright verdict against Hytera Communications, a competitor in the field of two-way radios and repeaters.

Jurors awarded $345.8 million in compensatory damages and $418.8 million in punitive damages in the Northern District of Illinois. Chicago-based Motorola had accused four former engineers of downloading confidential documents, including proprietary source code for digital mobile radios, before joining Hytera between 2008 and 2010. Shenzhen, China-based Hytera has argued that Motorola waited too long to act on its suspicions.