Facebook刚刚对雅虎的新专利战进行了反击，声称雅虎正在侵犯10项专利。上个月，雅虎（Yahoo）在这场小冲突中开了先河，它提出了一项专利侵权诉讼，指控这家社交媒体巨头侵犯了其10项专利，涉及页面广告、在线隐私和网络成员之间的互动。

就在雅虎发起诉讼几天后，我们得知Facebook已经从IBM购买750项专利，显然是为了支持其缺乏的60项美国专利组合。然而，看来，IBM的专利中没有任何一项今天进入Facebook的反诉讼。所以，让我们来看看Facebook实际使用什么来瞄准雅虎。

US Patent No. 7,827,208 - this patent claims priority back to 2008 (granted 2010) and covers a method of generating a personalized story on a social network based on the user's acti*** and the common acti*** of other users. Facebook claims that Photostream, Recent Activity and Groups Activity features on Flickr infringe the patent.

US Patent No. 7,945,653 - this patent, identifying Mark Zuckerberg as the first listed inventor, claims priority back to 2008 (granted 2011) and covers a method of allowing a user to reject his or her identification in digital media posted by another user. Facebook claims that the People in Photos feature of Flickr infringes the patent.

US Patent No. 6,288,717 - this patent claims priority back to 1999 (granted 2001) and was just assigned over to Facebook three days ago. It covers a method of providing a user with selected, ranked and posted topics of interest on their page based on that user's identified interests. Facebook claims that Yahoo's home page infringes the patent.

US Patent No. 6,216,133 - this patent claims priority back to 1995 (granted 2001) and was originally filed by Philips Corp. The patent was assigned to Facebook in December 2011. The broadest claims cover a method of fetching information based on a user's past interaction patterns. Facebook alleges that My Yahoo, Yahoo Finance, Yahoo Sports, Yahoo Travel, Flickr, and various other Yahoo services infringe the patent.

US Patent No. 6,411,949 - this patent claims priority back to 1999 (granted 2002) and was also originally filed by Philips and assigned to Facebook last December. The patent covers a system for "enhancing content" by selecting and supplying media to a user based on the user's profile or preferences. Like the '133 patent, Facebook alleges that numerous Yahoo services infringe this patent.

US Patent No. 6,236,978 - this patent claims priority back to 1997 (granted 2001). The patent covers the creation of a user profile based on static factual information (e.g., sex, age, location, etc.) for the user and dynamic information based on transacti*** by the user (e.g., purchase preferences). Again, Facebook claims Flickr, Yahoo Finance, Yahoo Sports and other services infringe.

US Patent No. 7,603,331 - this patent claims priority back to 1997 (granted 2009) and covers a method of providing a user with dynamic recommendati*** based on historical data for the user. Flickr and the litany of other Yahoo services are listed again as infringing.

US Patent No. 8,103,611 - this patent claims priority back to 1995 (granted 2012) and covers providing a user with a recommendation based on "multidimensional data," using the Cartesian product of the dimensi***. This is a nerdy one, and continues the trend of alleging that nearly all of Yahoo's services infringe.

US Patent No. 8,005,896 - this patent claims priority back to 1998 (granted 2011) and was assigned over to Facebook in February. The patent covers the specific network procedures for allowing users to request and exchange content. Facebook alleges that Flickr infringes this patent.

US Patent No. 8,150,913 - this patent claims priority back to 1998 (granted 2012) and was also just assigned over to Facebook in February. The patent covers controlling access to user profile information on a network, and allowing users to individually grant other users access to interact with videos and photos.

这就是小结。这里没有什么惊喜。绝大多数的专利都涵盖了你所期望的社交媒体专利：对用户交互的控制以及用户在网络上显示和访问的内容和信息。然而，值得注意的是，榜单上只有前两项专利实际上来自于Facebook的工作——其余专利是最近从其他公司转让或授权给Facebook的。雅虎将被要求在本月晚些时候对这些侵权指控作出回应，除非有时间延长，因此我们将密切关注此事，并随时向您通报最新情况。