John Greenwald

John Greenwald is a partner at Perilla Knox & Hildebrandt LLP and a highly respected AV®-rated patent and trademark lawyer. He works closely with innovators, entrepreneurs, and established companies to protect their intellectual property rights. His practice covers patent preparation and prosecution, trademarks, copyrights, licensing, infringement, and clearance matters. John is known for his ability to help businesses safeguard their ideas while finding practical and cost-effective solutions that support long-term success.

John earned his J.D. from Chicago-Kent College of Law at the Illinois Institute of Technology. He also holds a B.S. in Mechanical Engineering from the Georgia Institute of Technology. His technical background as a mechanical engineer for a major electric utility and a manufacturer of high-voltage electrical equipment gives him unique insight when working with clients in industries such as mechanical systems, medical devices, electrical engineering, software, and consumer products.

Throughout his career, John has handled a wide range of patent and trademark matters, from drafting and prosecuting applications to conducting detailed infringement and validity analyses. He negotiates and drafts licensing, development, settlement, and consulting agreements designed to secure advantageous terms for his clients. John advises companies of all sizes—from Fortune 500 corporations to emerging start-ups—on U.S. and international intellectual property strategy and portfolio management. He also helps resolve IP infringement disputes efficiently, minimizing litigation risk while safeguarding clients’ critical intellectual property assets.

In addition to client work, John Greenwald is active in the legal community. He speaks regularly on intellectual property issues and has held leadership roles in several professional organizations, including the Atlanta Bar Association’s Intellectual Property Law Section, the Georgia Intellectual Property Alliance, and the Association of Intellectual Property Firms. His career reflects a strong commitment to advancing innovation and supporting the business success of his clients.

Law Office Affiliations

• Partner, Perilla Knox & Hildebrandt LLP
• Former Attorney, Gardner Groff & Greenwald, PC
• Former Attorney, Bernstein & Associates, P.C.
• Former Attorney, Bischoff & Associates, P.C.
• Member, State Bar of Georgia
• Member, Illinois State Bar Association
• Member, Atlanta Bar Association, Intellectual Property Law Section
• Member, Georgia Intellectual Property Alliance
• Member, Association of Intellectual Property Firms

Licensed State

• Georgia
• Illinois

Education

• Chicago-Kent College of Law, Illinois Institute of Technology
  Juris Doctor (J.D.)
• Georgia Institute of Technology
  Bachelor of Science (B.S.) in Mechanical Engineering

Awards & Badges