Nanosys Seeks to Trademark ‘XQDEF,’ Risks Losing 6-Year-Old ‘QDEF’ Mark July 1
Nanosys applied June 9 to register “XQDEF” as a U.S. trademark for an international class of “chemicals, films and plastics,” Patent and Trademark Office records show. Nanosys landed the “QDEF” trademark July 1, 2014, and has been marketing quantum dot…
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enhancement films for years under that trade name. It risks having PTO cancel QDEF if it doesn’t file the required declaration of use statement on the trademark’s sixth anniversary or ask for a six-month deadline extension. Nanosys has "nothing to announce just yet in terms of product details" but plans to use XQDEF "alongside" QDEF, emailed Director-Marketing Jeff Yurek Monday.