Photo of Leigh C. TaggartPhoto of Leigh C. Taggart

Leigh C. Taggart

Co-Leader, Intellectual Property Litigation Practice Group


Cornell University Law School, J.D.
  • with honors; American Jurisprudence Awards in Trial Advocacy and Legal Ethics
Haverford College, B.A.
  • Philosophy

Prior Employment

  • Rader, Fishman & Grauer, PLLC, Bloomfield Hills, MI, Partner, 2005-2013
  • Rexair LLC, Troy, MI, General Counsel and Secretary, 1998-2004; Assistant Counsel, 1995-1998
  • Shaw and Currey, Ithaca, NY, Associate, 1993-1995
  • Drummond Woodsum Plimpton & MacMahon, Portland, ME, Associate, 1990-1993

Bar Admissions

Professional Affiliations

State Bar of Michigan

New York State Bar Association

American Intellectual Property Lawyers Association (AIPLA)

Michigan Intellectual Property Lawyers Association (MIPLA)

Federal Circuit Bar Association

Michigan Intellectual Property American Inn of Court, Master Member

Michigan State Bar Foundation, Patron Fellow

Federal Bar Association, Eastern District of Michigan

  • Intellectual Property Committee, Co-chair, 2010-2016

Direct Selling Association

  • Lawyer’s Council and Government Relations Committee, 1997-2004
News & Resources


Leigh Taggart is a partner and an intellectual property litigation attorney with almost 30 years of experience. He litigates patent, trademark, copyright, antitrust, and trade secret matters throughout the U.S. in federal trial and appellate courts and before the International Trade Commission. He also has extensive experience in international intellectual property and contract cases.

  • Aids clients in avoiding and resolving complex commercial disputes involving contract, antitrust, and intellectual property issues
  • Served as General Counsel and Secretary for the manufacturer of Rainbow® Cleaning Systems distributed in more than 70 countries


  • Advised C-level executives on mixed business and legal issues, often involving $25 to $250 million in risk exposure or revenue potential
  • Tried patent, trademark, trade dress and copyright cases in U.S. District Courts and the International Trade Commission
  • Resolved intellectual property and commercial disputes ranging from $5 million to several hundred million dollars in controversy
  • Worked in varied technologies including, automotive, cataract surgical instruments, intraocular lenses, spinal fixation devices, jet engines, executive business jet aircraft components, pharmaceuticals, nanotechnology, wireless networks, heavy-duty diesel engines
  • Ran five patent countersuit after previous counsel lost $240 million judgment, settling all claims for $110 million plus substantial cross-licensing gains
  • Resolved $1 billion dollar patent claim without litigation using private dispute resolution process established between parties
  • Argued a trademark case involving millions of dollars in alleged damages before the United States Sixth Circuit Court of Appeals, winning remand for trial
  • Argued a case presenting a patent law issue of first impression before the United States Federal Circuit Court of Appeals
  • Served as General Counsel and Secretary for Rexair, LLC, manufacturer of Rainbow® Cleaning Systems:
    • Contracted with independent distributors in over 60 countries and enforcing valuable trademark rights licensed in distribution agreements
    • Negotiated solution to complicated dispute with European customer/distributor, resolving protracted litigation in the U.S. and the United Kingdom, while retaining customer/distributor on favorable terms
    • Litigated and supervised trademark, unfair competition and distributor disputes in Australia, Belgium, Bulgaria, France, Germany, Italy, Lebanon, Mexico, Portugal, Turkey, United Kingdom and the U.S.
    • Traveled and worked extensively throughout European and Asian markets to solve mixed business and legal issues
    • Conducted and supervised various internal investigations and compliance audits


Clinton River Watershed Council

  • Volunteer of the Year Award, 2001

News & Resources



Seminars & Events

  • Frequent invited speaker on intellectual property and litigation topics, including trade secrets, trademark litigation and e-Discovery


  • The Best Lawyers in America, 2017-2020
    • Recognized in practice areas of:
      • Litigation - Intellectual Property
      • Patent Law
  • DBusiness, Top Lawyers, 2014, 2016, and 2018
  • Managing Intellectual Property IP STARS, 2014-2020
    • Recognized as a Patent Star and Trademark Star
  • Michigan Super Lawyers, 2006

Academic Appointments

  • Cornell Law School, Federal Litigation Seminar, Guest Lecturer, March 1998