Cellphones that contain a button for inserting a smiley face emoticon violate Varia Holdings' patents, the company claimed in a federal court lawsuit filed last week against Samsung Electronics and Research In Motion. In other patent news, the full U.S. International Trade Commission has declined to overturn an administrative judge's ruling that Motorola Mobility did not violate Apple's intellectual property. The suit covered seven Android-based phones and the Xoom tablet.

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