Norwegian oil and gas drilling company TCO AS infringes rival NCS Multistage Inc.'s patent for the Canadian firm’s “AirLock” system used in hydraulic fracking operations, a Texas federal jury found Friday. The decision deals NCS, which had a market cap of $64.3 million when the trial began, a win in enforcing a design from its 105-patent portfolio.
According to the verdict, TCO is liable for copying US Patent No. 10,465,445—which covers “a system used in downhole well completion.”
NCS launched the underlying complaint in 2020, alleging that TCO copied its AirLock buoyancy system for what’s known as a “casing ...
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