I/P Engine, a subsidiary of mobile technology and intellectual property firm Vringo, today announced that it has filed a patent lawsuit against Microsoft in the Southern District of New York.
The Vringo company alleges that Microsoft infringed on its relevance filtering technology patents, more specifically U.S. patents #6,314,420 (entitled “Collaborative/Adaptive Search Engine”) and #6,775,664 (entitled “Information Filter System and Method for Integrated Content-Based and Collaborative/Adaptive Feedback Queries”).
According to the complaint, I/P Engine is seeking a judgment declaring that Microsoft infringes the patents-in-suit, as well as damages.
Vringo had earlier sought to get hundreds of millions of dollars from firms like Google, AOL and IAC, but was only awarded a fraction of that by a jury back in November 2012. That story is ongoing, though.
In August, Vringo announced that it would sell 9.6 million shares of its common stock for over $31 million to buy over 500 patents and patent applications from (Microsoft partner) Nokia. It later used some of those patents to sue Chinese mobile giant ZTE in the UK.
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The company is backed by billionaire entrepreneur and Dallas Mavericks owner Mark Cuban.
Image credit: KIMIHIRO HOSHINO for AFP / Getty Images
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