Marc F. Sperber

Carolyn M. Passen is a top attorney recognized by Best Lawyers in the practice area(s) of Trademark Law. Carolyn M., who practices law in Chicago, Illinois, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carolyn M. is held by other top lawyers in the same geographic and legal practice area.

Ryan Blaine Bennett P.C. is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. Ryan Blaine, who practices law in Chicago, Illinois, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ryan Blaine is held by other top lawyers in the same geographic and legal practice area.

Jonathan Amarilio is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice and Commercial Litigation. Jonathan, who practices law in Chicago, Illinois, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jonathan is held by other top lawyers in the same geographic and legal practice area.

Jennifer L. Colvin is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Jennifer L., who practices law in Chicago, Illinois, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jennifer L. is held by other top lawyers in the same geographic and legal practice area.

Matthew Steinmetz focuses primarily on leveraged buyouts of public and private companies, as well as recaps and joint ventures. His experience spans a wide variety of sectors, including technology, media, healthcare, industrials and retail. His principal clients include both large cap and middle cap leveraged buyout funds, located in the U.S. and abroad. In addition to his considerable transactional work, he is a trusted advisor to a number of senior PE fund managers.

John Cullis focuses his practice on intellectual property litigation, counseling and procurement. Over the course of his career, John has been recognized among his peers as a preeminent litigator in the field of intellectual property. John is an accomplished trial lawyer who has first-chaired trademark, trade dress, trade secret, copyright and unfair competition matters before judges and juries in numerous U.S. federal courts and the U.S. Patent and Trademark Office’s (USPTO) Trademark ...

Mark is a partner at FisherBroyles, LLP. He is an accomplished trial lawyer who focuses his practice on intellectual property litigation in the United States and abroad. Mark is recoginzed worldwide as a leading practitioner in the development of automated trade secret asset management blockchain systems. Mark is co-author of Trade Secret Asset Management 2018: A Guide to Information Asset Management including RICO and Blockchain. Mark has taught Advanced Trade Secrets Law in the LLM program ...

Bill provides strategic counsel to numerous clients regarding the development, protection and monetization of sophisticated global intellectual property portfolios. His practice includes a wide array of intellectual property matters with a particular emphasis portfolio management and long-term portfolio strategy development, management of defense and enforcement actions, infringement and clearance analyses, technology agreements, licenses and transfers, and strategic guidance on significant c...

Marta K. Davidson is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Marta K., who practices law in Chicago, Illinois, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marta K. is held by other top lawyers in the same geographic and legal practice area.

Approachable, yet candid in his counsel, Kurt Rohde provides an objective analysis of the issues tied to his clients’ intellectual property assets and best courses of action. In particular, with over 14 years focused in complex patent litigation and large patent portfolio management, Kurt regularly serves as patent trial counsel for multibillion dollar corporations. Kurt helps his clients keep the bigger picture at the forefront by advising on obtaining, evaluating, and enforcing their ...