Photo of Louis DiSanto

Louis DiSanto

Attorney, Banner Witcoff

312-463-5000ldisanto@bannerwitcoff.com

71 South Wacker Drive
Suite 3600
Chicago, IL 60606

View Firm Biography

Louis DiSanto serves as counsel to category-leading companies and globally recognized brand owners on the development, deployment, and enforcement of intellectual property portfolios that drive business objectives and competitive advantage. He guides integrated intellectual property strategies that shape competitive landscapes and support long-term market leadership.

DiSanto directs cross-functional teams in architecting and executing comprehensive intellectual property portfolios spanning patents, trademarks, trade dress, copyrights, and trade secrets. He provides strategic direction on portfolio development, risk positioning, and critical decision points, ensuring alignment with product pipelines, market expansion, and enterprise value creation. His approach centers on constructing layered, complementary rights that reinforce one another to create meaningful competitive advantage, while maintaining disciplined cost efficiency.

Lawdragon Honors

Honor Year Practice
The 2026 Lawdragon 500 Leading Global IP Lawyers 2026 IP, Licensing, Litigation
The Inaugural Lawdragon 500 Leading Global IP Lawyers 2025 IP, Licensing, Litigation

In contentious matters, DiSanto serves as lead counsel in complex intellectual property disputes across U.S. district courts, arbitration forums, and administrative proceedings, including before the Patent Trial and Appeal Board and Trademark Trial and Appeal Board. He has secured successful affirmances before the U.S. Court of Appeals for the Federal Circuit and delivers business-critical outcomes in high-stakes disputes through early-stage strategic positioning, targeted enforcement initiatives, and commercially driven resolution strategies.

DiSanto regularly advises on navigating complex competitive intellectual property landscapes in connection with product launches, brand expansion, and market entry strategies, with a focus on identifying and neutralizing risk while preserving strategic flexibility. He is known for integrating proactive risk mitigation with decisive enforcement capabilities, enabling clients to avoid disputes where possible and to act from positions of strength when disputes arise.

In addition to his practice, DiSanto maintains a longstanding commitment to pro bono service. Since 2005, he has represented low-income families through the Lawyers’ Committee for Better Housing, defending against wrongful evictions and navigating housing court proceedings. He is a past recipient of the organization’s Volunteer Attorney of the Year Award and currently serves on its board of director.