NEW YORK, June 3: Oprah Winfrey will have to defend in court her use of the phrase “Own Your Power” in her magazine and on her website, a US appeals court said on Friday. Overturning a lower court ruling, the 2nd Circuit US Court of Appeals revived claims brought by Simone Kelly-Brown, owner of a motivational services business, Own Your Power Communications Inc, who says she owns a trademark on the phrase. (agencies)