The United States International Trade Commission ruled late Tuesday that Motorola Mobility is guilty of infringing on one of Microsoft’s patents. The patent is related to calendar sync and how one might use a device to schedule a meeting, BBC News explained. Microsoft originally filed a suit against Motorola Mobility in August in an attempt to block sales of several Motorola Android smartphones, such as DROID 2, DROID X and several others, and accused Motorola Mobility of infringing on seven total patents. The ITC judge ruled that Motorola Mobility devices do not infringe on six of Microsoft’s patents, however. Microsoft recently filed a similar lawsuit against Barnes & Noble, and the company has already reached licensing agreements with HTC, Samsung, ViewSonic and several other firms. “The ones who can actually sit back and relax as they watch this are those who have concluded license deals with Microsoft (or other patent holders) and don’t have to worry about possible or actual import bans, possible or impossible workarounds, or further escalation,” patent expert Florian Mueller of FOSS Patents explained recently.