El Segundo-based ContentGuard Holdings, Inc., a provider of intellectual property around digital rights management (DRM), said Thursday that it has inked a worldwide patent licensing agreement with Nokia Corporation. Terms of the license were not announced. ContentGuard said the technology covers consumer-friendly implementation of digital content distribution models such as content rental, content subscription, variable pricing, and secure peer-to-peer distribution. ContentGuard is a spinoff of Xerox, and is also backed by Microsoft, Thomson, and Time Warner.