In 2007, the plaintiff sued AT&T Mobility and other companies in the cellular industry, alleging that their international “SMS” or “text” messaging capabilities infringed forty-seven claims of two patents. The Plaintiff argued that AT&T Mobility and the other defendants infringed the patents by allowing subscribers to send and receive international text messages by, for example, allowing the subscriber’s cell phone to automatically register with a foreign cellular network and then receive a text message from another subscriber in the United States.
Following the court’s claim construction ruling, AT&T Mobility and the other defendants filed a motion for summary judgment of non-infringement (one of several filed for non-infringement and invalidity). In his August 5, 2011 opinion, Judge Alexander Williams, Jr. granted the motion, holding that defendants did not infringe as a matter of law. The plaintiff has not yet stated whether it will appeal.
A copy of the opinion is available here.
Information on Baker Botts’ Palo Alto office is available here.
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