Expert Witness Consulting and Litigation

Mandel provides expert witness consulting on software user interface design, including intellectual property, patents, trademarks, and consumer behavior regarding methodologies and interface techniques for software applications and mobile apps from the 1980’s to the present. Client include the Federal Trade Commission (FTC), Motorola, Dun & Bradstreet, Amazon Web Services, Doxo, Katzkin Leather, and Karl Storz Endoscopy.

Dr. Mandel has over 40 years of experience in software design and development, specializing in user experience design, user research, consumer psychology, prototyping and evaluation of software, applications, websites, and mobile apps.

Expert Witness Activity Summary

  • Total Cases: 8
  • Trial Testimony: 1 (Federal Court)
  • Depositions: 5
  • Expert Declarations/Reports: 5
  • Expert Rebuttal Reports: 3
  • Expert for Plaintiff (4) and Defendant (4)

Key Expert Witness Litigation

Federal Trade Commission v. DIRECTV, Inc., et al., 2013 – 2017
Mandel was a user experience (UX), consumer psychology, and usability expert for the Federal Trade Commission (FTC) regarding fraudulent and deceptive website practices by DIRECTV, Inc. The settlement demand was $3.95 billion (FTC Press Release). Dr. Mandel provided trial testimony in Federal Court.

Expert Witness Experience Summary

Theo Mandel's Expert Witness Experience SummaryTheo Mandel’s Expert Witness Experience Summary