SAN FRANCISCO — At a panel discussion about gender discrimination in the law Tuesday night, U.S. District Judge Yvonne Gonzalez Rogers described what happened when she observed aloud during a hearing in a large, multiparty antitrust case that it was “interesting” that no women had come to the podium to handle arguments. 

At the next hearing in the case, Gonzalez Rogers said, women argued on behalf of all the parties.