Photo of Steven A. WeissPhoto of Steven A. Weiss

Steven A. Weiss

Partner, Distinguished Counsel


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


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Steven Weiss provides advice on a wide variety of business litigation issues 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 Steven to handle a full range of business disputes because they trust his judgment and litigation skills.

Steven has been recognized since 2010 by Chambers USA: America's Leading Lawyers for Business in the General Commercial Litigation field in Illinois. He has also been selected for several years to Top 10 Super Lawyers by Illinois Super Lawyers.

  • 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 Matters

Representative Clients
  • Redflex Traffic Systems
  • Exelon
  • Motorola
  • Commonwealth Edison
Representative Cases
  • City of Chicago, ex rel. Aaron Rosenberg v. Redflex Traffic Systems, Inc. and Redflex Holdings, Ltd. No. 17-1524 (7th Cir. 2018); represented Redflex and its Australian parent in qui tam action alleging that Redflex procured a contract to install red-light camera technology in Chicago through bribing City officials. Obtained dismissal of the whistle-blower in the District Court. RedFlex then settled with the City. The relator filed an appeal, and on March 12, 2018, the Seventh Circuit affirmed the dismissal.

  • AmeriCann v. Wellness Group Pharms, arbitration in Denver; Conducted a three day arbitration concerning a breach of contract. Arbitration concluded January 2018.
  • CenterPoint Energy Services, Inc. v. WR Property Management, LLC, et al. No. 13-1797 (7th Cir. 2014), aff'g No. 10 C 2121 (N.D. Ill. 2013 and 2011); 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 120603 (Ill. App. Ct. (1st) 2013), aff'g No. 10 L 2834 (Cir. Ct. of Cook Cty., Ill. Jan. 27, 2012); the Appellate Court affirmed summary judgment in favor of our cilent, 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 110753 (Ill. App. Ct. (1st) 2012); aff'g No. 05 L 12107 (Cir. Ct. of Cook Cty., Ill.), the Appellate Court affirmed summary judgment in favor of our client, Exelon, and dismissed plaintiff's claims relating to a parent/subsidiary issue.
  • Fasteners for Retail v. K International, Inc. 11C 2164 (N.D. Ill. 2011); Represented client in 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. No. 10-3985 (7th Cir. 2011), aff'g 09C 6853 (N.D. Ill.); obtained summary judgment on Americans with Disabilities Act claim in District Court. Affirmed by Seventh Circuit Court of Appeals.
  • Fasteners for Retail v. Ningbo Liuhe Plastics Co. Ltd. 2:10-CV-0306 (D. Nev. 2010); 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 108673 (Ill. 2010), reversing 1-08-2714 (Ill. App. Ct. (1st) 2009), aff'g 07 CH 21547 (Cir. Ct. of Cook Cty., Ill. Aug 19, 2008 and Feb. 20, 2008); 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 (Cir. Ct. of Cook Cty., Ill. Sept. 9, 2009); 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 06C 5516 (N.D. Ill. 2008) and Exelon v. Nuclear Fuels Corp 06C 5515 (N.D. Ill. 2008); represented plaintiff in 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. 2006); 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. 2006); 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. of Cook Cty., Ill. Jul. 11, 2005); 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. 2004); 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, a 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 business, a computer server chassis manufacturer, against purchaser's claims of 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 534 U.S. 316 (2002), aff'g 227 F.3d 921 (7th Cir. 2000); aff'g No. 97 C 2963 (N.D. Ill.); represented Chicago Park District against claims that its regulations for issuing permits for events in the parks violate the First Amendment. The Seventh Circuit Court of Appeals 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 the seller of a hotel in claims against purchaser and guarantors. In this opinion, based on our opposition, the court refused to confirm the purchaser's confirmation plan in bankruptcy. 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.
  • 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.
  • 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.



  • Listed in Chambers USA: America's Leading Lawyers for Business since 2010
    • Recognized as one of America's leading business lawyers in the General Commercial Litigation field in Illinois; Chambers USA states:
      • 2019 - "Steven Weiss is described by peers as a 'great lawyer' and 'a very solid commercial litigator.' He has significant experience representing clients in various commercial and business litigation matters."
      • 2018 - "Steven Weiss advises clients on a wide range of commercial and business litigation. He possesses significant expertise in intellectual property and breach of contract disputes, alongside additional strengths in employment matters."
      • 2017 – "Steven Weiss is a 'well-respected' commercial litigator. He draws on notable experience across a broad range of civil disputes, including trade secret, breach of contract and employment suits." 
      • 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."
  • The Best Lawyers in America, 2011-2021
    • Recognized in practice area of Commercial Litigation
  • Illinois Super Lawyers, 2005-2020
    • Selected as one of the:
      • Top 100 Super Lawyers, 2005-2017
      • Top 10 Super Lawyers, 2009 and 2014-2016
  • Leading Lawyers Magazine Illinois, 2003-2017
    • Recognized in practice area of Commercial Litigation

Professional & Community Involvement

  • American Bar Association
    • Section of Litigation
      • Executive Committee, 2013-2020
      • Chair, 2015-2016
      • Chair-elect, 2014-2015
      • Vice Chair, 2013-2014
      • Council Member, 2010-2020
      • Attorney Client Privilege Task Force, 2012-2014
    • ABA Standing Committee on Strategic Communications, Chair, 2011-2014
  • Chicago Bar Foundation
    • President, 2018-2020
    • Board of Directors, 2018-present
    • Chair of Grants Committee
    • Co-chair of Fall Benefit
    • Investing in Justice Campaign, Vice Chair
  • American Bar Foundation, Fellow
  • American Bar Association Commission on the American Jury Project, Member, 2019-2020
  • ABA Resource Committee, Member, 2019-2020
  • Goodman Theatre, Business Council
  • Lookingglass Theatre, Board Member, Vice President, and Member of Finance Committee

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