Columbia Sportswear has won a summary judgement in Portland federal court regarding one of the patents covering its Omni-Heat reflective insulation technology. The Oregon judge found that the “overall visual effect” of the dot pattern used by Columbia was “nearly identical” to that of Seirus Innovative Products' range of Heatwave branded products. Columbia launched its suit against Seirus in the Oregon court in January 2015. The court is now scheduled to rule on Seirus' alleged infringement of two other Omni-Heat patents in April 2017.