Photo of Steven A. WeissPhoto of Steven A. Weiss

Steven A. Weiss

Leader, Complex Commercial Litigation Practice Group


University of Michigan Law School, J.D.
  • cum laude
Cornell University, B.A.
  • cum laude

Bar Admissions

Court Admissions

Professional Affiliations

American Bar Association

  • Section of Litigation
    • Chair, 2015-present
    • Chair-elect, 2014-2015
    • Vice Chair, 2013-2014
    • Council Member, 2010-2014
    • Business Litigation Committee, Co-chair, 2005-2008
    • Section Annual Meeting Committee, Co-chair, 2009
    • Attorney Client Privilege Task Force, 2012-2014
  • ABA Standing Committee on Strategic Communications, Chair, 2011-2014

Chicago Bar Foundation

  • Board of Directors and Grants Committee
  • Investing in Justice Campaign, Vice Chair

American Bar Foundation, Fellow

News & Resources


Mr. Weiss provides advice on a wide variety of business litigation for companies and business people. He is focused on resolving business disputes with particular experience handling intellectual property, breach of contract, trade secret, employment and covenant not to compete matters. Local and national companies and individuals retain Mr. Weiss to handle a full range of business disputes because they trust his judgment and litigation skills.

  • Provides cost-effective representation that achieves results - either through settlement or trial
  • Employs the most up-to-date technology tools to meet client goals
  • Speaks and writes on a variety of topics relevant to today's litigators and business people, including such topics as intellectual property and trade secrets litigation, as well as issues related to electronic discovery


Representative Clients
  • Redflex Traffic Systems
  • Exelon
  • Motorola
  • Wilson Sporting Goods
  • Commonwealth Edison
Representative Cases
  • CenterPoint Energy Services, Inc. v. WR Property Management LLC (10C 2121 -- N.D. Illinois 3/25/13 and 11/10/11; Seventh Circuit Court of Appeals, Case 13-1797, affirmed 2/18/14); the Seventh Circuit affirmed the grant of summary judgment on claims for fraudulent transfers and successor liability and entered judgment for $2.7 million.
  • Diane Dunet v. Clarence Simmons and Commonwealth Edison Circuit Case No. 10 L 2834 affirmed in the Appellate Court of Illinois, First Judicial District on 4/23/13; the Appellate Court affirmed summary judgment in favor of ComEd in a case in which plaintiff decedent claimed that ComEd owed a duty of care to pedestrians crossing a street outside a crosswalk.
  • Patrick J. Linsner v. Exelon Corporation and Exelon Energy Delivery Co., LLC Circuit Case No. 05 L 12107 affirmed in the Appellate Court of Illinois, First Judicial District, on 3/28/12; the Appellate Court affirmed summary judgment in favor of Exelon and dismissed Plaintiff's claims relating to a parent/subsidiary issue.
  • Fasteners for Retail v. K International, Inc. (11C 2164 - N.D. Illinois 10/28/11); patent case with false marking counterclaim. Court dismissed portion of false marking counterclaim based on America Invents Act of 2011.
  • Nancy Fisher v. Vizioncore, Inc. and Quest Software, Inc. 09 C 6853 (N.D. Illinois), affirmed 7/20/11 by Seventh Circuit Court of Appeals 10-3985; obtained summary judgment on Americans with Disabilities Act claim in District Court and affirmed by Seventh Circuit Court of Appeals.
  • Fasteners for Retail v. Ningbo Liuhe Plastics Co. Ltd. (2:10-CV-0306 – U.S. District Court Nevada 6/15/10); obtained temporary restraining order and permanent injunction against foreign company’s domestic sale of infringing products under patent, copyright and trademark infringement, and misappropriation of trade secrets.
  • State Building Venture v. Illinois Department of Central Management Services (07 CH 21547, Circuit Court of Cook County, 1-08-2714 Illinois Appellate Court 1st District 5/26/09, 108673, Illinois Supreme Court 11/18/10); obtained judgment on the pleadings in statutory construction case involving long term lease of government real estate, affirmed by Illinois Appellate Court and reversed in Illinois Supreme Court on sovereign immunity grounds.
  • Pars Ice Cream Co., Inc. v. Conopco, Inc. d/b/a Unilever, Inc. (09 CH 15801, Circuit Court of Cook County, 9/9/09); obtained multiple preliminary injunctions against a supplier refusing to sell product to a distributor and attempts to transfer customers to a competing distributor.
  • Exelon v. General Atomic Technologies Corporation and Exelon v. Nuclear Fuels Corp. 06C 5516 (N.D. Ill. 5/12/08) and 06C 5515 (N.D. Ill. 3/5/08); breach of contract and fraud lawsuits arising from contracts for the delivery of uranium, seeking more than $100 million. Settled favorably a month before trial.
  • McConnell v. Iovino 04C 3705 (N.D. Ill. 8/21/06); in this decision, the court granted our clients summary judgment in a federal RICO case based on an alleged scheme to defraud plaintiff out of profit sharing. The court previously granted our other clients judgment on the pleadings on the civil conspiracy claims.
  • Solomon v. Spalitta 05C 6649 (N.D. Ill. 7/26/06); in this opinion, the court granted our motion to dismiss or transfer the case based on improper venue.
  • Kim v. Citigroup, Inc. 02 CH 15036 (Cir Ct Cook Co. 7/11/05); in a class action, the court granted our clients, a class of former employees, summary judgment on claims under the Illinois Wage Act.
  • Rockwell Automation, Inc. v. Goss International 00 Civ. 8763 (S.D.N.Y. 9/20/04); represented printing press manufacturer in copyright and trade secrets case. Successfully defeated motion for summary judgment on argument that prior bankruptcy proceeding barred claims.
  • Goss Graphic Systems, Inc. v. Man Roland 139 F. Supp. 2d 1040 (N.D. Iowa 2001); represented plaintiff newspaper printing press manufacturer against foreign importers of presses in claims under the Antidumping Act of 1916. In this opinion, the court denied defendants' motions to dismiss on a variety of jurisdictional and substantive grounds.
  • WTM, Inc. v. Hennek 125 F.Supp. 1040 (N.D. Ill. 2000); represented sellers of an $80 million computer server chassis business against claims by the purchaser for fraud in conjunction with the sale. In this opinion, the court granted our client's motion to dismiss claims under the Minnesota Securities Act.
  • Thomas v. Chicago Park District 227 F.3d 921 (7th Cir. 2000); represented Chicago Park District against claims that its regulations for issuing permits for events in the parks violate the First Amendment. In this opinion, the Court affirmed the District Court's grant of summary judgment to our client on all remaining counts. The United States Supreme Court affirmed the Seventh Circuit decision on January 15, 2002, ruling in favor of our client on all issues.
  • MacDonald v. Chicago Park District 132 F.3d 355 (7th Cir. 1997); represented Chicago Park District against claims that its regulations violate the First Amendment. The Magistrate held that various parts of the regulations were invalid and issued a preliminary injunction. In this opinion the Seventh Circuit Court of Appeals stayed that injunction and then reversed and vacated the issuance of a preliminary injunction. (See above for later history).
  • In re Economy Lodging Systems, Inc. 205 B.R. 862 (N.D. Ohio 1997); represented seller of a hotel in claims against purchaser and guarantors. In this opinion, the court refused to confirm the purchaser's confirmation plan in bankruptcy, based on our opposition. The bankruptcy filing was related to our obtaining a judgment on behalf of the seller, after defeating the purchaser's attempt to stay the action, Fofi Hotel Co., Inc. v. Davfra Corp., 846 F. Supp. 1345 (N.D. Ill. 1994).
  • August Storck K.G. v. Nabisco, Inc. 59 F.3d 616 (7th Cir. 1995); represented defendant in a trademark and trade dress infringement action brought by a competitor. In this opinion, the court reversed the preliminary injunction that had been issued against our client.
  • Protectoseal Co. v. Barancik 23 F.3d 1184 (7th Cir. 1994); represented largest shareholder of a closely held business in vacating an injunction that had been entered against him 20 years earlier under the Clayton Act prohibition on interlocking directorates. In this opinion, the court affirmed the vacation of the injunction.
  • Wobble Light, Inc. v. McLain/Smigiel Partnership 890 F. Supp. 721 (N.D. Ill. 1995); represented prospective investors in claims against them under RICO, the Lanham Act and the Illinois Deceptive Trade Practices Act. In this opinion, the court granted our motion to dismiss.


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  • Chambers USA: America's Leading Lawyers for Business, 2010-2016
    • Recognized as a Top Lawyer in the Commercial Litigation field in Illinois. Chambers states:
      • 2016 – “Steven Weiss is a broad-based business litigator whose practice involves breach of contract, noncompete agreement and intellectual property matters. Sources call him a very, very skilled practitioner and a very distinguished lawyer who stands out for his courtroom advocacy.”
      • 2015 – “Commercial litigator Steven Weiss is known as ‘a very good litigator who's very good on his feet.’ His practice has a wide reach, including breach of contract and fraud cases, in addition to employment and IP matters.“
      • 2012 – “Steven Weiss shows particular finesse in trade secret and IP matters, as well as employment noncompete litigation.”
      • 2010 – “shows particular finesse in trade secret and IP matters, as well as employment noncompete litigation.”
  • Illinois Super Lawyers, 2005-2016
    • Selected as a Top 10 Super Lawyers in Illinois, 2009, 2014-2016
    • Ranked one of the Top 100 Super Lawyers in Illinois, 2005-2016
  • Leading Lawyer Network, 2003-present
  • The Best Lawyers in America, 2011-2017