Facebook countersues Mitel over patents
Facebook has filed a countersuit claiming Canadian telecommunications company Mitel Networks is infringing on patents it now owns, The Next Web reports.
The social network alleges that Mitel infringes on its patents for a “telephone status notification system” and “user definable on-line co-user lists.” These are both patents that Facebook bought from Microsoft a month after Mitel’s initial patent suit was filed. The patents were originally owned by AOL, but the company sold them to Microsoft in April.
In March, Mitel filed suit against Facebook over patents for “pro-active features for telephony” and an “automatic web page generator.” The
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