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John A. Marlott


(T) +1.312.269.4236
(F) +1.312.782.8585


  • The George Washington University (J.D. with high honors 1995; Order of the Coif; Moot Court Board); University of Illinois at Urbana-Champaign (B.S. in General Engineering 1990)

Bar Admissions

  • Illinois; District of Columbia; Supreme Court of the United States; U.S. Court of Appeals for the Federal Circuit; Northern, Central, and Southern Districts of Illinois, Western District of Wisconsin, and various other U.S. District Courts; and registered to practice before the U.S. Patent and Trademark Office

Government Service

  • Patent Examiner, U.S. Patent and Trademark Office (1990-1993)

Praised by Jones Day clients as "technically and legally excellent," John Marlott has been repeatedly named one of the world's leading patent professionals by Intellectual Asset Management. John brings nearly 30 years of intellectual property law experience to his role as lead counsel in complex IP disputes. He focuses on high-stakes district court patent litigation, post-grant patent proceedings before the Patent Trial & Appeal Board (PTAB), and appeals to the Federal Circuit. John was part of the team representing SAS Institute in its 2018 win at the U.S. Supreme Court, in a case that will fundamentally transform the way patents are litigated before the PTAB. Acting for SAS in that same case, John's earlier win at the Federal Circuit was named by IP Law360 as one of the top America Invents Act-related decisions of 2016.

John is particularly valued by clients for his strategic thinking and his ability to identify strengths and weaknesses in patents and patent portfolios. He has been recognized by The Best Lawyers in America© and Illinois Super Lawyers for his intellectual property litigation experience.

John is frequently invited to speak on patent litigation issues and since 2008 he has been a coauthor of the law school casebook Drafting Patents For Litigation & Licensing, published by BNA Bloomberg and the ABA Section of Intellectual Property Law.

John is a member of the Northern District of Illinois Trial Bar. He is a registered patent attorney and a former patent examiner at the U.S. Patent and Trademark Office.

Honors & Distinctions

  • The Best Lawyers in America© for intellectual property litigation (2018 and 2019)

    IAM Patent 1000 — The World's Leading Patent Professionals (2017 and 2018), where he is lauded for "positioning cases to meet whatever commercial objectives [clients may] have"

    Illinois Super Lawyers for intellectual property litigation (2012-2019)
John Marlott