American Airlines said on Friday that it sued the Internet search leader Google, accusing it of selling search words involving American?s name.

The American Airlines lawsuit, filed on Thursday in Federal District Court for the Northern District of Texas, accuses Google of violating trademark laws with its practice of selling search terms such as ?American Airlines? or ? to other companies for advertising.

The airline, a unit of AMR, accuses Google of selling the right to use American Airlines? trademarks and service marks, or ?words, phrases, or terms confusingly similar to those marks,? to competitors who then direct searchers to their own Web pages.

?This lawsuit involves efforts by certain companies to free ride on American Airlines? brands through use of Google?s technology,? according to the filing.

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