Motorola counter-sues Microsoft in patent infringement suit

Motorola subsidiary Motorola Mobility has hit back at Microsoft, suing for alleged patent infringement in a legal battle that saw Microsoft sue the mobile phone manufacturer just the previous day.

Motorola Mobility has filed a lawsuit in the federal courts for the Southern District of Florida and the Western District of Wisconsin on the grounds that Microsoft has infringed 16 patents in its products including PC and server software, Windows mobile software and Xbox products.

Kirk Dailey, an intellectual property exec at Motorola Mobility, has said that the firm is “bringing this action against Microsoft in order to halt its infringement of key Motorola patents,” according to The Wall Street Journal.

“Motorola has invested billions of dollars in R&D to create a deep and broad intellectual property portfolio and we will continue to do what is necessary to protect our proprietary technology.”

It was just Tuesday when Microsoft had filed a lawsuit which claimed the mobile phone maker was seeking unreasonable and discriminatory royalties for its technology, alleging that Motorola reneged on commitments to offer fair terms and conditions in patent licenses for technologies such as the wireless and video-coding found in Microsoft’s Xbox.

Motorola has responded by saying that it did indeed offer a fair deal but “unfortunately, despite a fair offer from Motorola, Microsoft was unwilling to enter into a licensing agreement.”

The tit-for-tat lawsuits come after Microsoft had already sued Motorola for patent infringement over its own Android powered handsets.  There did seem to be a brief period of détente with Motorola announcing that it would be developing handsets that run Windows Mobile 7, though such niceties certainly seem a long way off now.