A lawsuit filed in which claims Microsoft Corporation (NASDAQ:MSFT) has been infringing patents that permit Internet search engines to maximum effectively place advertisements.

In the lawsuit which filed in Manhattan federal court, I/P Engine Inc reported that Microsoft (MSFT) uses search technology that is based on inventions by two employees of I/P Engine’s parent firm, Vringo, Inc. (NYSEAMEX:VRNG).

According to that lawsuit, Microsoft utilizes the technology in systems that make advertisements and related links for users of firm’s search engine, Bing.

The representative of Microsoft did not immediately reply to a request for comment. A spokesman for Vringo refused to comment.

While a Virginia (VRNG) panel awarded I/P Engine in November, about $30M in damages following it found that firm comprising Google Inc.(NASDAQ:GOOG) and AOL, Inc. (NYSE:AOL)had violated the similar patents that are at matter in the Microsoft lawsuit.

After I/P Engine’s declaration of the judgment, though, its parent firm’s stock plunged by about 10%. The firm had been looking for damages of as a minimum $696M.

In the claim filed on Thursday, I/P Engine requested that Microsoft has deliberately infringed its patents. I/P Engine reported that the U.S. Patent and Trade Office referenced one of its patents in 2003 at what time the agency disallowed a comparable Microsoft patent application.

In contrast, Research In Motion Limited (USA) (NASDAQ:RIMM) look confused after analysts declared that BlackBerry’s new smartphone platform released coming week faces an difficult battle winning again corporate and government users who helped out.

An analyst at ABI Research, Dan Shey stated that they still have work forward of them and that is to acquire their current customers in addition to Android, Apple and Windows customers to offer BlackBerry a second new look.

He added that they’ve been misplacing several of those customers, not essentially an entire firm but losing the consumer, dropping the executive who needs to use an iPhone.