Parker Chapin Flattau & Klimpl was a New York City-based law firm that practiced from 1934 to 2001, when it merged with Dallas-based Jenkens & Gilchrist. It was a prominent mid-sized New York firm, often called a corporate and securities boutique because of its highly regarded middle market securities practice which also embraced securities litigation and arbitration. Its securities clients, according to electronic filings with the Securities and Exchange Commission, included Sbarro, Sotheby's and Logitech.