Langer, Grogan & Diver P.C.
1717 Arch Street
Suite 4130
Philadelphia, PA 19103
Phone: 215-320-5660
Fax: 215-320-5703


Langer, Grogan & Diver P.C. specializes in highly-complex commercial litigation. Its practice is national, primarily in the federal courts. The firm has expertise in antitrust law, especially the intersection of intellectual property and antitrust, class actions, consumer law, and general commercial litigation. The firm is frequently called upon by other counsel to brief significant motions and appeals. It is the only boutique of its size ranked by the prestigious Chambers Guide.

The firm’s lawyers obtained the largest antitrust settlement ever within the Third Circuit, over $202 million, in a case alleging a nationwide conspiracy to fix the prices of corrugated boxes. In re Linerboard Antitrust Litigation, 305 F.3d 145 (3d Cir. 2002). In 2010, the firm recovered over $150 million dollars from Wachovia Bank on behalf of primarily elderly victims of telemarketing fraud. Checks were mailed to approximately eight hundred thousand victims in the full amounts taken from their accounts.

The firm is also committed to law in the public interest. It has received awards including the Equal Justice Award for 2006 from Community Legal Services of Philadelphia, the Pro Bono Award of the Hebrew Immigrant Aid Society, and the Social Justice Award from the Jewish Social Policy Network. It has established the Langer Grogan Diver Social Justice Fellowship at the University of Pennsylvania Law School to support the work of a graduate entering public interest law.

The firm has been at the forefront of the cutting edge antitrust litigation relating to patents and generic drugs. See Kroger Co. v. Sanofi-Aventis, 701 F. Supp. 2d 938 (E.D. Pa. 2010). It obtained dismissal of antitrust class-action claims alleging that a generic manufacturer had conspired with a major pharmaceuitical manufacturer to delay generic entry of the drug Plavix. In King Drug Co. of Florence Inc. v Cephalon, Inc., 702 F. Supp 2d. 514 (Ed. Pa. 2010). The court sustained claims brought by the firm on behalf of a generic manufacturer against a patent holder and the generic manufacturers who were alleged to have conspired to keep a generic version of the widely sold drug, Provigil, off the market.

The firm's attorneys have obtained injunctive relief on behalf of businesses threatened by anti-competitive or other wrongful conduct. In Beilowitz v. General Motors Corp., 233 F. Supp. 2d 631 (D.N.J. 2002) its lawyers obtained an injunction enjoining General Motors from implementing a new national marketing scheme.

Langer, Grogan & Diver P.C. is one of the few firms that accepts major commercial cases on a contingent-fee basis.

All website content © 2007 Langer, Grogan & Diver P.C.
1717 Arch Street, Suite 4130 Philadelphia, PA 19103
Phone: 215-320-5660 Fax: 215-320-5703