Overture's pay-for-performance search service allows companies to bid for search-result placement based on relevant keywords. Advertisers pay the company to drive traffic to their sites via search engines.
The company filed the suit on 4 April in the US District Court for the Central District of California. Overture sued FindWhat.com earlier this year for allegedly infringing on the same patent which, the company says, is a critical component underlying its bid-for-placement and pay-for-performance search technologies.
According to Overture spokesman Al Duncan, Google is infringing on the patent in its own bid-for-placement technologies.
In a statement, Google denied the claim, saying, "this does not come as a surprise to us since Overture is engaged in another lawsuit concerning this patent with Findwhat.com. We have analysed the patent and determined that we do not infringe any valid claim that it contains."
However, Overture claimed that it spent thousands of research and development hours and tens of millions of dollars to develop its technologies, and that it intends to enforce its intellectual property rights against those who use its patents without authorisation.