Justin DeAngelis
Practice Expertise
- Intellectual Property
Areas of Practice
- Intellectual Property
Profile
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.
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.
Bar Admissions
Illinois
U.S. Patent and Trademark Office
Education
Northwestern University, Kellogg School of Management, Certificate, Quarles & Brady Leadership Program (2025)
Chicago-Kent College of Law - Illinois Institute of Technology (J.D., 2015)
Chicago Intellectual Property Colloquium, fellow
Journal of Intellectual Property, submissions editor
Giles Rich IP Moot Court Competition, member
Intellectual Property Law Society, member
University of Wisconsin - Madison (B.S., 2011)
Mechanical Engineering
Areas of Practice
- Intellectual Property
Professional Career
Articles
"Drafting skills"
"Early New Product/Patent Steps Receive More Protection with Ruling"
"Year In Review: Trademark, Trade Secret, Patent, Copyright, Design Rights"
"Year In Review: Trademark, Trade Secret, Patent, Copyright, Design Rights"
A Quick Dive Into the Upcoming Changes to Chinese Design Patent Law
Another Step Forward: Further Updates on In re Maatita and Design Definiteness
Design Patent Drafting Strategies in View of Apple v. Samsung
Design Patents are Heating Up at the Federal Circuit, Again
Flawless Legs and a Shaved Head? An Ordinary Observer Can Tell the Difference
Implications of Prosecution History Estoppel for Design Patents Clarified by CAFC
IP Attorneys Justin DeAngelis, Christian Stahl and Johanna Wilbert Offer Lessons from lululemon v. Peloton Trademark Case
Justin DeAngelis Co-Authors CIPA Article on International Protection of GUI and Animated Designs
Mason Baranczyk, Justin DeAngelis, James Aquilina and Nicholas Schmidbauer Author IP Watchdog Article on Divisive Design Patent Case and Design Definiteness
Protecting the Product: Furniture
Protecting the Product™: Software
Protecting the Product™: Typefaces and Fonts
R.I.P. Mr. Rosen: Federal Circuit Upends Longstanding Design Patent Obviousness Test
Recap of 2024 U.S. Design Patent Drama: Here's What We Know Now
Recent Changes to International Design Law
Recent PTAB Guidance on Permissible Drawing Amendments for U.S. Design Applications
Recent Trends in Article of Manufacture of Design Claims: A Modern Digital Popularity Contest
U.S. Design Patent Enablement and Definiteness Requirements in view of In re: Maatita
Uncertainty Ahead if Design Patent Obviousness Test is Abrogated by en banc CAFC
When "Functionality" Swallows Design Rights: A Caution for Design Patent Applicants
While There is an Active Utility Application, There is Design Hope
"Early New Product/Patent Steps Receive More Protection with Ruling"
"Year In Review: Trademark, Trade Secret, Patent, Copyright, Design Rights"
"Year In Review: Trademark, Trade Secret, Patent, Copyright, Design Rights"
A Quick Dive Into the Upcoming Changes to Chinese Design Patent Law
Another Step Forward: Further Updates on In re Maatita and Design Definiteness
Design Patent Drafting Strategies in View of Apple v. Samsung
Design Patents are Heating Up at the Federal Circuit, Again
Flawless Legs and a Shaved Head? An Ordinary Observer Can Tell the Difference
Implications of Prosecution History Estoppel for Design Patents Clarified by CAFC
IP Attorneys Justin DeAngelis, Christian Stahl and Johanna Wilbert Offer Lessons from lululemon v. Peloton Trademark Case
Justin DeAngelis Co-Authors CIPA Article on International Protection of GUI and Animated Designs
Mason Baranczyk, Justin DeAngelis, James Aquilina and Nicholas Schmidbauer Author IP Watchdog Article on Divisive Design Patent Case and Design Definiteness
Protecting the Product: Furniture
Protecting the Product™: Software
Protecting the Product™: Typefaces and Fonts
R.I.P. Mr. Rosen: Federal Circuit Upends Longstanding Design Patent Obviousness Test
Recap of 2024 U.S. Design Patent Drama: Here's What We Know Now
Recent Changes to International Design Law
Recent PTAB Guidance on Permissible Drawing Amendments for U.S. Design Applications
Recent Trends in Article of Manufacture of Design Claims: A Modern Digital Popularity Contest
U.S. Design Patent Enablement and Definiteness Requirements in view of In re: Maatita
Uncertainty Ahead if Design Patent Obviousness Test is Abrogated by en banc CAFC
When "Functionality" Swallows Design Rights: A Caution for Design Patent Applicants
While There is an Active Utility Application, There is Design Hope
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