Contending they complied with their ethical obligations, patent attorney Raymond P. Niro and three other lawyers have asked a federal judge to reconsider a ruling holding them liable for millions of dollars in legal fees. In a written motion, Niro and the other lawyers argued that U.S. District Judge William T. Hart erred in accepting the allegation they knew a client’s patent-infringement lawsuit was based on lies. They did not know about their client’s false statements when they were pursuing the suit, …