LJS has developed considerable expertise in a number of areas. Click on the link below for more information:

Evidentiary Research

In today’s complex legal environment surveys often play a critical role in successfully resolving trademark and advertising disputes. LJS professionals design and conduct research and offer survey-based expert opinion in both Federal and State courts and other forums including the Federal Trade Commission and United States Patent & Trademark Office. LJS’s evidentiary research expertise includes:

  • Trademark & Trade Dress Law:
    • Secondary Meaning
    • Likelihood of Confusion
    • Genericism / Distinctiveness / Fame
    • Dilution
  • Advertising Perception and Comprehension
  • Claim Substantiation

Phil Johnson
Phone: 312.321.8115
Email: 

Vandana Razdan
Phone: 312.321.8140
Email: