Motorola landed a major early victory in its dueling lawsuits with Microsoft on Monday after the International Trade Commission ruled (PDF) that Microsoft had violated four of its patents. The initial findings would effectively ban the Xbox 360 for its use of the H.264 video format, a claim it has leveled against other Microsoft products as well. As a first ruling, it's not automatically in effect and faces a review by a panel, due in August, before it's enforced.