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Chicago

Overview

Crowell & Moring’s Chicago office opened in 2021, when 60 attorneys joined from the premier, 100-year-old full service intellectual property and technology firm Brinks Gilson & Lione. Just as Chicago has evolved into a world class technology hub while maintaining its core industries, Crowell’s Chicago office is focused on helping both leading companies and entrepreneurs protect, commercialize, and bring their innovations, creations, and brands to market throughout the world. Our team of lawyers and professionals have deep scientific knowledge and industry experience that strengthens the firm’s ability to help guide clients through litigation, transactions, and a dynamic regulatory environment in the increasingly data and technology-driven global economy.   

  • Click here to explore opportunities in the Chicago office.

    Click here to explore opportunities in the Chicago office.

  • Crowell & Moring’s Chicago office has deep midwestern roots and a long-standing commitment to the surrounding community. We partner with local legal aid agencies on a number of fronts, including: assisting residents in housing court that are facing improper evictions; acting as court-appointed guardians to represent the interests of minors; and providing legal advice to artists and art organizations.

    We are also active in local pipeline development initiatives. Since the founding of Legal Prep in 2012, the Chicago office has supported Legal Prep Charter Academies. Legal Prep is a free, open-enrollment high school with mostly Black students that was founded to inspire young people and increase the diversity of the legal profession and judiciary. Every year, our attorneys volunteer to teach Legal Prep’s high school students in a mock trial course, which provides several benefits to students, including improving their written and oral communication, critical thinking, problem solving, and advocacy skills. Through this immersive exercise, Crowell volunteers guide students to a deeper understanding of the various stages that make up a trial.

    Crowell & Moring’s Chicago office has deep midwestern roots and a long-standing commitment to the surrounding community. We partner with local legal aid agencies on a number of fronts, including: assisting residents in housing court that are facing improper evictions; acting as court-appointed guardians to represent the interests of minors; and providing legal advice to artists and art organizations.

    We are also active in local pipeline development initiatives. Since the founding of Legal Prep in 2012, the Chicago office has supported Legal Prep Charter Academies. Legal Prep is a free, open-enrollment high school with mostly Black students that was founded to inspire young people and increase the diversity of the legal profession and judiciary. Every year, our attorneys volunteer to teach Legal Prep’s high school students in a mock trial course, which provides several benefits to students, including improving their written and oral communication, critical thinking, problem solving, and advocacy skills. Through this immersive exercise, Crowell volunteers guide students to a deeper understanding of the various stages that make up a trial.

  • Our Chicago office is committed to advancing diversity, equity, and inclusion within our team and the broader legal community. Our team members include an alumna of the Leadership Council on Legal Diversity Pathfinder Program, and leading attorneys have been named to Crain’s Chicago Business: Notable Women and the Lawyers of Color Hot List. Members of our office also serve as leaders within the firm’s DEI initiatives, such as Crowell’s Diversity Council and Racial Equity Task Force.

    Our Chicago office is committed to advancing diversity, equity, and inclusion within our team and the broader legal community. Our team members include an alumna of the Leadership Council on Legal Diversity Pathfinder Program, and leading attorneys have been named to Crain’s Chicago Business: Notable Women and the Lawyers of Color Hot List. Members of our office also serve as leaders within the firm’s DEI initiatives, such as Crowell’s Diversity Council and Racial Equity Task Force.

Contacts

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Insights

Client Alert | 6 min read | 11.26.25

From ‘Second’ to ‘First:’ Federal Circuit Tackles Obvious Claim Errors

Patent claims must be clear and definite, as they set the boundaries of the patentee’s rights. Occasionally, however, claim language contains errors, such as typographical mistakes or incorrect numbering. Courts possess very limited authority to correct such errors. The United States Court of Appeals for the Federal Circuit has emphasized that judicial correction is appropriate only in rare circumstances, where (1) the error is evident from the face of the patent, and (2) the proposed correction is the sole reasonable interpretation in view of the claim language, specification, and prosecution history. See Group One, Ltd. v. Hallmark Cards, Inc., 407 F.3d 1297, 1303 (Fed. Cir. 2005) and Novo Indus., L.P. v. Micro Molds Corp., 350 F.3d 1348, 1357 (Fed. Cir. 2003)....

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Insights

Client Alert | 6 min read | 11.26.25

From ‘Second’ to ‘First:’ Federal Circuit Tackles Obvious Claim Errors

Client Alert | 3 min read | 11.20.25

Design Patent Application Drawings & Prosecution History Must Be Clear (Merely Translucent Won’t Suffice!)

Client Alert | 2 min read | 11.14.25

Defining Claim Terms by Implication: Lexicography Lessons from Aortic Innovations LLC v. Edwards Lifesciences Corporation

Press Coverage | 11.14.25

Pizza Puff’ Is Fair Game, Little Caesars Tells Seventh Circuit

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Professionals

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Insights

Client Alert | 6 min read | 11.26.25

From ‘Second’ to ‘First:’ Federal Circuit Tackles Obvious Claim Errors

Patent claims must be clear and definite, as they set the boundaries of the patentee’s rights. Occasionally, however, claim language contains errors, such as typographical mistakes or incorrect numbering. Courts possess very limited authority to correct such errors. The United States Court of Appeals for the Federal Circuit has emphasized that judicial correction is appropriate only in rare circumstances, where (1) the error is evident from the face of the patent, and (2) the proposed correction is the sole reasonable interpretation in view of the claim language, specification, and prosecution history. See Group One, Ltd. v. Hallmark Cards, Inc., 407 F.3d 1297, 1303 (Fed. Cir. 2005) and Novo Indus., L.P. v. Micro Molds Corp., 350 F.3d 1348, 1357 (Fed. Cir. 2003)....

View All Insights