XQDEF Trademark Clears PTO Opposition Window With No Protests

Nanosys’ application to trademark xQDEF for its next generation of quantum-dot enhancement film products cleared its 30-day publication window Thursday at the Patent and Trademark Office with no oppositions filed, agency records show. The application proceeds next to a PTO notice of allowance, triggering the start of a three-year clock for Nanosys to file a statement of use attesting to xQDEF’s commercial deployment. Nanosys said xQDEF enables lower-cost QD backlights with advanced features and in new form factors without sacrificing QDEF’s efficiency or color performance (see 2012300003).