Supreme Court Declines Opportunity to Clarify Irreparable Harm Prong for Trademark Practitioners By Whitney Devin Cooke on October 14, 2014 Email this postTweet this postLike this postShare this post on LinkedIn The U.S. Supreme Court has declined a petition filed by the estate of Herb Reed and thereby the opportunity to define the showing of irreparable harm that a trademark plaintiff must make to obtain a preliminary injunction. Read more