James Dasso

Foley & Lardner LLP

James D. Dasso is a partner and trial lawyer with Foley & Lardner LLP. Mr. Dasso focuses his practice on disputes relating to business acquisitions (such as fraud, breach of contract, working capital, purchase price adjustment and earnout cases); intellectual property lawsuits (involving patent, trademark, copyright and licensing issues); product liability and food and drug contamination claims; and other commercial lawsuits, including breach of contract and business tort.

Mr. Dasso has nearly three decades of experience in presenting complex scientific, technical and business cases to judges, juries and arbitration panels around the United States.

He has appeared in lawsuits and arbitrations pending in nineteen different states from Alaska to Florida and California to New York, as well as in the District of Columbia.

Before joining Foley, he clerked for the Honorable J. Edward Lumbard, United States Court of Appeals for the Second Circuit.

Examples of disputes relating to business acquisitions that Mr. Dasso has successfully handled include:

  • Recovering more than $13 million in working capital adjustment after sale of manufacturing company.
  • Securing a verdict of more than $8 million after a two-plus week jury trial relating to a sale of business and associated claims of food contamination (before trial, the court granted summary judgment on fraud counterclaims seeking in excess of $40 million).
  • Obtaining a purchase price adjustment of more than $8 million for the sale of a manufacturing company.
  • Reducing the purchase price of a manufacturing company by more than $5 million after litigation in state court and before an arbitration panel.
  • Winning a nearly $5 million decision after a five-day arbitration after the sale of a division of a corporation.
  • Prevailing on nearly 80 percent of $20 million in dispute after a week-long evidentiary hearing to determine purchase price of insurance company.

Examples of intellectual property lawsuits that Mr. Dasso has successfully handled include:

  • Obtaining summary judgment dismissing patent claims seeking in excess of $100 million for a major consumer products company.
  • Prevailing after a nearly three-week jury trial in the Eastern District of Texas and appeal to the Federal Circuit in an educational software patent dispute seeking in excess of $50 million.
  • Successfully settling a $100 million-plus patent licensing dispute involving an internationally-known engine manufacturer (for less than an existing judgment) before closing arguments in a jury trial.

Education :

Mr. Dasso graduated, magna cum laude, from the University of Michigan Law School in 1986. He was elected to the Order of the Coif and served as the executive editor of the Michigan Law Review. He received a bachelor’s degree from the University of Oregon with a double major in mathematics and economics in three years.

Admissions :

Mr. Dasso is member of the State Bar of Illinois, and has been admitted to practice before the United States District Courts for the Northern District of Illinois (Trial Bar), the Western District of Michigan, the Southern District of Indiana, the District of Maryland and the Central District of Illinois. He belongs to the United States Court of Appeals for the Third, Fourth, Seventh, Eighth, Ninth and Federal Circuits.

Affiliations and Professional Memberships :

Mr. Dasso teaches trial advocacy as an adjunct professor at the Northwestern University School of Law and through The National Institute of Trial Advocacy.

He is a member of the American Bar Association, including its Sections on Litigation and Intellectual Property Law and its Trial Evidence Committee, the Seventh Circuit Bar Association and the Practicing Law Institute.


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What types of cases Attorney James Dasso & Foley & Lardner LLP can handle?
Foley & Lardner LLP can handle cases related to laws concerning Litigation, Contracts, Business, Advertising, Intellectual Property, Trademark infringement. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Foley & Lardner LLP located?
Foley & Lardner LLP is located at 321 North Clark, 321 N Clark St #2800, Chicago, IL 60654, USA. You can reach out to Foley & Lardner LLP using their phone line 312.832.4501. You can also check their website foley.com or email them at [email protected].
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