American Airlines filed a lawsuit against Google Inc. over the Internet company’s sale of keywords to American Airline’s rivals that the company says infringes on its trademarks. The lawsuit, which is seeking unspecified damages, was filed because Google allowed American Airlines competitors to purchase keywords that American Airlines says that it has trademarked.

This isn’t the first time that Google has been sued for selling keywords to competitors. In 2005, Geico Inc. files a similar lawsuit and the court found that Google’s practices were perfectly legal. Google however did settle with Geico the same year over ads that featured the word Geico in the text versus ads that were triggered by the searches using the trademark.

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