Perilla Knox & Hildebrandt LLP is an intellectual property law firm headquartered at 5871 Glenridge Drive, Suite 350, in Atlanta, Georgia 30328-5376. Founded approximately four years before 2026, the firm grew from a three-attorney practice to a team of more than 30 professionals. It operates with multilingual capabilities, serving clients in English, Chinese (Simplified), Korean, Japanese, German, and French.
Practice areas cover patent prosecution, patent litigation, trademark services, and inter partes review (IPR) defense. Technical concentrations span electrical, mechanical, and software technologies, with particular depth in artificial intelligence, machine learning, autonomous vehicles, semiconductors, blockchain systems, medical devices, and consumer electronics. The firm handles matters from initial prosecution through contested post-grant proceedings before the USPTO.
The client base includes Fortune 100 companies, emerging growth businesses, universities, and individual inventors. A notable recent matter involved defending Champion Power Equipment in IPR proceedings that were vacated by USPTO Director John Squires.
The firm holds Tier 1 rankings in Intellectual Property Litigation and Patent Law from Best Lawyers, inclusion in Juristat’s Top Patent Firms 2025 list, and Tier 1 status in the 2026 Best Law Firms edition for both Litigation – Intellectual Property and Patent Law categories. Partners recognized in Best Lawyers 2025 include Jason Perilla, Kenny Knox, Thomas Hildebrandt, Brad Groff, John Greenwald, Cynthia Lee, Eric Maurer, Joe Staley, and others.
The firm is reachable by phone at +1 (770) 927-7802 and by fax at +1 (877) 389-6779. Online invoice payment and advance payment processing are available through LawPay on the firm’s website. The firm’s Atlanta office serves as its primary hub for client intake, attorney consultations, and coordination of domestic and international patent and trademark matters.