As you can see, Mattel is listed as being "Unlicensed".
However..
Mattel Becomes 40th Licensee, Setting a Major Milestone in Moore Microprocessor Patent™ Licensing Program
CUPERTINO, Calif. – Feb. 25, 2008 – Alliacense today announced that Mattel, Inc. has purchased a Moore Microprocessor Patent™ (MMP) Portfolio license from The TPL Group. Mattel designs, manufactures and markets toys under a variety of iconic brands.