Jeffrey Kass Email Address

Intellectual Property Litigation

A 640-attorney law firm with offices in 16 cities and practice areas in business, litigation, financial services and real estate.

Jeffrey is a business and intellectual property attorney with Polsinelli PC. in Denver, Colorado and St. Louis, Missouri. Jeffrey handles all types of trademark infringement, patent infringement, trade secrets and copyright infringement disputes. He also is an adjunct professor of Intellectual Property litigation, and he serves as an expert witness in trademark and unfair competition cases. As part of his commitment to giving back, Jeffrey also is active in the startup and emerging company world. He advises startup, emerging and growing companies on a variety of business as well as IP issues. Small Business Monthly named Jeffrey one of the top 10 lawyers for entrepreneurs. He is general counsel to dozens of companies across the country. Jeffrey has successfully defended and protected numerous trademarks, patents and other intellectual property for companies such as bebe, Apple, Amazon, Sprint, Agxplore, LLC (agricultural chemicals), Cupidville.Com, American Racing Equipment (racing wheels), CardioDynamics (cardio sensors), TRG Accessories (Swiss Army luggage), PlentyofFish.Com (dating website), Cinergy Health (discount health programs), Endurance (vehicle service contracts), Fuse Advertising (advertising), Critter Sitters (pet care), Cliffedge Marketing (advertising), Bonita Bay (golf communities), StopRepairBills.Com (vehicle service contracts), FacetheJury.Com (internet dating site), Barker Company (floral display cases), WH Group (digital manipulation software) and others. He also has successfully handled numerous business litigation cases. Jeffrey has significant jury trial, bench trial, arbitration, negotiation and mediation experience in numerous business and intellectual property matters. Jeffrey has experience in multiple industries, but has significant experience with the communications, computer, organic food, luggage and travel, and apparel industries. He also has worked over a decade on issues facing the vehicle service contract industry.