build a native advertising solution, where the ads take on the format of the content they accompany. The so-called "quality index" gave advertisers a sense of how the system would rank an ad along with sophisticated analytical tools that gave advertisers insights on why certain campaigns had been effective. Patent litigation In May 1999, GoTo filed a patent application titled "System and method for influencing a position on a search result list generated by a computer network search engine", which was granted as in July 2001. A related patent has also been granted in Australia and other patent applications remain pending. Prior to its acquisition by Yahoo, Overture initiated infringement proceedings under this patent against FindWhat.com in January 2002 and Google in April 2002. The lawsuit against Google related to its AdWords service. In February 2002, Google introduced a service called AdWords Select that allowed marketers to bid for higher placement in marked sections - a tactic that had some similarities to Overture's search-listing auctions. Following Yahoo's acquisition of Overture, the lawsuit was settled with Google agreeing to issue 2.7 million shares of common stock to Yahoo in exchange for a perpetual license. Trademark issues In 2013, the Tenth Circuit Court of Appeals held in Lens.com, Inc. v. 1-800 Contacts, Inc. that online contact lens seller Lens.com did not commit trademark infringement when it purchased Yahoo and Google AdWords search advertisements using competitor 1-800 Contacts' federally registered 1800 CONTACTS trademark as a keyword. In August 2016, the Federal Trade Commission filed an administrative complaint against 1-800 Contacts alleging, among other things, that its search advertising trademark enforcement practices have unreasonably restrained competition in violation of the FTC Act. 1-800 Contacts has denied all wrongdoing and was scheduled to appear before an FTC administrative law judge in April 2017. Adware partnership In April 2003, Overture announced a three-year partnership with Gator Corporation, (now Claria Corporation) an adware company. Under the partnership, Gator's software monitored a web-user's activity on web sites and search engines (even sites such as Google that are not affiliated with Overture) and grabbed search keywords. These keywords were submitted to the Overture search engine. As a result, advertisers who paid for listings in Overture found their products advertised through Gator's Search Scout software, even if they wanted nothing to do with Gator. Overture faced a great deal of criticism for entering into this partnership. When Yahoo acquired Overture,