Louis R. Cohen - Wilmer Cutler Pickering Hale and Dorr LLP

Louis R. Cohen

Listed in Best Lawyers since 1989
Phone: 202-663-6700

Louis Cohen is a senior counsel in the firm's Litigation/Controversy Department, and a member of the Appellate and Supreme Court Litigation Practice Group. He joined the firm in 1967. Mr. Cohen served as Deputy Solicitor General of the United States from 1986-1988, and focuses on US Supreme Court and other appellate litigation and corporations law. Mr. Cohen’s appellate practice has included more than fifty cases on the merits in the US Supreme Court and a large number of cases in the courts of appeals. He has argued sixteen cases in the Supreme Court, winning fifteen.


Mr. Cohen’s victories before the Supreme Court include such significant cases as the City of New York v. Clinton (the Line Item Veto case), US Term Limits, Inc. v. Thornton (invalidating congressional term limits), and Cargill v. Monfort(predatory pricing under the Clayton Act). Other Supreme Court cases in which he has participated include: Regional Rail Reorganization Act Cases (constitutionality of a reorganization statute); Piper v. Chris-Craft (interpretation of the Williams Act); Basic v. Levinson (materiality issues under the federal securities laws); Carpenter v. United States (Rule 10b-5; wire fraud); and Norwest Bank v. Ahlers (priorities under the Bankruptcy Code).

Mr. Cohen’s court of appeals cases include arguments on behalf of Bear Stearns in deKwiatkowski v. Bear Stearns (2d Cir. 2002); Sears Roebuck in Bolin v. Sears Roebuck & Co., 231 F.3d 970 (5th Cir. 2000); Painewebber Group inPainewebber v. Zinsmeyer Partnership Trust, 187 F.3d 988 (8th. Cir. 1999); First Commonwealth Savings Bank inUnited States v. John C. York, et al., 112 F.3d 1218 (D.C. Cir. 1997); General Electric in United States ex rel Taxpayers Against Fraud v. General Electric Company (6th Cir. 1994), and the CBS and NBC television networks in Schurz Communications v. FCC, 982 F.2d 1043 (7th Cir. 1992).

On the corporate side, Mr. Cohen has advised clients (including both for-profit and nonprofit firms) in connection with offerings of securities, mergers and acquisitions, purchases and sales of businesses, proxy fights, tender offers, corporate restructurings and liquidations.

Harvard UniversityAB Harvard Law SchoolJ.D.

Case History

Other Court Admissions
  • United States Supreme Court

Office Location

1875 Pennsylvania Avenue, NW
Washington, DC 20006
United States

Practice Areas

Appellate Practice (Supreme Court)
Commercial Litigation
Mergers and Acquisitions Law
Securities / Capital Markets Law