Reports: Mitsubishi loses wind turbine lawsuit to GE

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Tokyo, April 2, 2012 – Mitsubishi Heavy Industries Ltd. must pay about $170 million to GE after a jury in the U.S. found the company infringed a wind turbine patent.

MHI may choose to challenge the verdict, according to the Tokyo-based company. A second GE patent, related to the wind turbine design, was dismissed by a U.S. district court judge in February, according to reports.

GE’s infringement accusation against MHI hinged on a particular technology used in 2.4 MW wind turbines to connect to the local grids in such a way that damage is prevented during times of voltage fluctuations.

GE has sought to maintain its market position as a wind turbine maker in the U.S., where the company claims to have made about half the wind turbines in use.

In turn, MHI has filed an antitrust lawsuit in Arkansas accusing GE of trying to monopolize the wind-turbine market. That suit is on hold, pending the outcome of the patent cases. The company also has a patent-infringement complaint against GE in federal court in Orlando, Florida.

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