Smith, Gambrell & Russell, LLP Represents Mu Sigma Inc. in Favorable Res Judicata Ruling

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2025 PR Smith, Gambrell & Russell, LLP Represents Mu Sigma Inc. in Favorable Res Judicata Ruling 1.14

CHICAGO (January 14, 2025) – Smith, Gambrell & Russell, LLP is pleased to announce that the First District of the Illinois Appellate Court ruled in favor of Smith Gambrell client, Mu Sigma Inc. and related entities, concerning application of principles of res judicata involving a prior, voluntary withdrawal of claims in India.

Mu Sigma asserts in a suit filed in the Circuit Court of Cook County, Illinois that three former employees formed a competing business, The Math Company, and, in doing so, engaged in significant misconduct including violation of contractual restrictive covenants and misappropriation of proprietary information. The circuit court dismissed the claims, finding that Mu Sigma's prior withdrawal of claims in a proceeding in India barred the Illinois claims pursuant to res judicata, based on the court’s consideration of Illinois law in conjunction with provisions of the India Code of Civil Procedure. The First District reversed and remanded the case, ruling—as argued by Mu Sigma—that the voluntary dismissal was not a final judgment on the merits and, therefore that the Illinois claims were not barred by the earlier Indian action.

The Smith Gambrell legal team representing Mu Sigma is Peter Silverman, Partner in the Litigation Practice Group in the Firm’s Chicago office, Lisa Mazzone, Counsel in the Litigation Practice Group in the Firm’s Chicago office, and Stephanie Jones, Partner in the Litigation Practice Group in the Firm’s Chicago office.

With more than 200 litigators, Smith, Gambrell’s Litigation Practice brings bench strength and deep experience to virtually any client dispute. Recognized by both Chambers USA and Best Lawyers, our lawyers regularly secure major victories across a wide range of legal claims and industries.

About Smith, Gambrell & Russell, LLP
Smith, Gambrell & Russell, LLP is a full-service, international law firm that advises regional, national and global businesses on a wide range of legal matters. The Firm’s nearly 350 attorneys provide legal counsel in more than 50 specialized practice areas, including corporate transactions, litigation, intellectual property, aviation, banking, real estate, insurance/reinsurance, construction, employment law, international, and employee benefits and executive compensation. Founded in 1893, Smith Gambrell has 14 domestic and international offices, including Atlanta; Austin; Charlotte; Chicago; Jacksonville; London; Los Angeles; Miami; Milan; Munich; New York; Southampton; Tampa; and Washington, D.C.

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