Posted Wednesday, March 7, 2007 11:54 AM | Contributed by crazy horse
NBC Universal Inc., Walt Disney Co. and three other U.S. theme-park operators were accused of infringing patents on magnetic brakes used on roller coasters. Safety Braking Corp., based in Newport Beach, Calif., claims the companies infringed patents won in 1994 and 2003. The defendants also include Busch Entertainment Corp., Six Flags Inc. and Cedar Fair LP.
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