Gregory's practice includes the securement, enforcement and defense of intellectual property. Gregory has served as lead counsel and opinion counsel in civil litigation. Gregory has provided validity, right-to-use and infringement/non-infringement opinions. A selected list of intellectual property law cases litigated by Gregory includes Maverick Recording Company, et al v. Rick Wash, Home Design Services v. Gordon George, et al., Mobley v Custom Golf Sales, Inc., et al., and The Attic Tent v Progressive Energy Solutions, Inc., et al.