William D.Coglianese (Bill)


Washington + 1.202.879.3710

Bill Coglianese develops winning litigation strategies and implements those strategies through briefing and oral advocacy at every stage of a case. His practice focuses on significant legal questions in complex civil cases.

Bill has litigated matters at every level of the federal judiciary, advancing his clients' interests in a broad array of subject matters. He recently argued a federal appeal on behalf of two hospital systems, successfully securing a precedential decision rejecting a request for more than $1 million in attorney's fees. He has defended companies against nationwide consumer class actions and has particular experience opposing claims asserted under the federal RICO statute. Bill also has defended companies whose mergers have been challenged by federal and state governmental authorities, briefing these matters at both the trial and appellate stages. In addition he has handled a range of constitutional matters including the representation of a group of public school teachers in a First Amendment challenge to the coerced payment of fees to public sector unions — a matter that Bill assisted with from the trial court all the way to the U.S. Supreme Court. He also has devised and litigated constitutional and statutory challenges to federal regulatory action.

Bill maintains an active pro bono practice. He briefed and argued a habeas appeal before the Seventh Circuit, ultimately winning relief for the client. In other pro bono representations Bill has helped secure a $2 million verdict stemming from a wrongful police shooting, successfully defended a client against charges of criminal conspiracy, and won disability benefits for a Marine veteran.


  • Sanofi defeats class certification in putative nationwide consumer class actionThe United States District Court for the District of New Jersey recently denied a motion for class certification brought by plaintiffs seeking to represent all consumers nationwide who purchased insulin products sold by Jones Day’s client Sanofi-Aventis U.S. LLC.
  • Indivior obtains Third Circuit affirmation of dismissal of RICO, state law claimsOn December 15, 2022, the United States Court of Appeals for the Third Circuit ruled in favor of Jones Day clients Indivior Inc., Indivior Solutions Inc., and Indivior plc.
  • PinnacleHealth System and Penn State Hershey attempt to merge Pennsylvania hospitalsJones Day represented PinnacleHealth System and Penn State Milton S. Hershey Medical Center as antitrust counsel in the hospitals' proposed merger.
  • Habeas petitioner secures relief on ineffective-assistance claimJones Day represented pro bono client Joseph J. Jordan, an inmate in Wisconsin, in his successful habeas appeal to the Seventh Circuit.
  • City of Detroit's chapter 9 plan of adjustment confirmedJones Day served as lead restructuring counsel to the City of Detroit in connection with its chapter 9 bankruptcy case filed in July 2013 and its ongoing restructuring efforts.
  • Man choked and shot by Baltimore police officers wins $2 million judgment on retrialOn August 11, 2014, a civil jury in the Circuit Court for Baltimore City awarded FenYanga Muhammad $2 million in compensatory damages for malicious prosecution by Baltimore Police Department Officer Donald Muir, Jr.
  • Advocacy groups prevail in Supreme Court, winning right to challenge Ohio's "false statement" lawOn June 16, 2014, the Supreme Court unanimously ruled in favor of Jones Day's clients, Susan B. Anthony List (SBA) and Coalition Opposed to Additional Spending and Taxes (COAST), holding that the advocacy groups may pursue their First Amendment challenge to Ohio's criminal prohibition on making "false statements" in election campaigns.
  • Political committee NYPPP secures invalidation of New York law limiting donations to independent-expenditure committeesOn May 6, 2014, the District Court for the Southern District of New York entered summary judgment in favor of Jones Day client New York Progress and Protection PAC ("NYPPP"), invalidating a New York statute that forbade political committees that only make independent expenditures from accepting more than $150,000 from any donor.
  • Text and Academic Authors Association files U.S. Supreme Court amicus brief in case concerning gray-market sales of copyrighted worksJones Day prepared an amicus brief on behalf of the Text and Academic Authors Association, urging the Supreme Court to hold that the Copyright Act prohibits copyrighted works from being purchased abroad and then imported into the United States and resold without the copyright owner's consent.
  • Marine veteran receives full Social Security Disability Insurance benefitsJones Day’s client, a Marine veteran, was diagnosed with post-traumatic stress disorder (PTSD) stemming from his service in armed combat in Iraq and Afghanistan.
  • Japanese national obtains favorable U.S. Supreme Court ruling in case addressing allocation of litigation costs between partiesOn May 21, 2012, the United States Supreme Court decided a significant case regarding the allocation of litigation expenses in civil cases, ruling in favor of Jones Day client Kouichi Taniguchi, in Taniguchi v. Kan Pacific Saipan, Ltd.