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About Justin

Domestic and international patent counsel for broad range of products

Justin DeAngelis assists clients with their domestic and international patent portfolios, including patent preparation and prosecution, freedom-to-operate analyses and infringement analyses for design and utility patents. He is a well-established member of the design patent bar, having prosecuted hundreds of U.S. design patent applications in a wide variety of product categories. He also regularly:

  • Counsels domestic and foreign clients on design rights and develops sophisticated design patent filing strategies.
  • Advises on proper filing strategies while providing protections in cases where analysis points to infringement by competitors.
  • Prepares, files and prosecutes utility patent applications, with direct knowledge in a variety of manufacturing and consumer product sectors.

With a mechanical engineering degree as his foundation, clients find Justin's technical training to be a strong complement to his legal knowledge.

Professional Recognitions

  • Best Lawyers in America® "Ones to Watch" (2021, 2022, 2023, 2024: Intellectual Property Law)
  • Illinois Super Lawyers® "Rising Stars" (2020-2024: Intellectual Property)
  • Recipient of USPTO Patent Pro Bono Achievement Certificate (2017)

Professional & Civic Activities

  • American Intellectual Property Law Association, vice chair (2022-present, Industrial Designs Committee), chair (2020-2022, Prosecution & Practice Subcommittee of the Industrial Designs Committee), chair (2018-2020, International Policy & Practice Subcommittee of the Industrial Designs Committee)
  • Intellectual Property Law Association of Chicago, co-chair (2019-2021),
    co-vice-chair (2018, Young Members’ Committee)
  • Chicago Bar Association, chair (2017), co-vice chair (2016 and 2018, Intellectual Property Law Committee)
  • Kettle Moraine Land Trust, board of directors (2018-present)
  • Journal of Intellectual Property, submissions editor (2014-2015)
  • U.S. District Court for the Northern District of Illinois, judicial extern (2014-2015)
  • U.S. Congressman, legislative intern (2013)

News & Insights


Bar Admissions

Court Admissions

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