J. Donald Best Photo

J. Donald Best



Don’s outstanding track record is built on successful outcomes in complicated and high-profile intellectual property litigation across a wide range of industry sectors and in courts throughout the United States. Clients rely on his tenaciousness and excellent trial skills gained from many years of work with cases involving patents, trade secrets, trademarks, and copyrights.

Don’s intellectual property litigation experience includes numerous jury and bench trials, appeals to the Court of Appeals for the Federal Circuit and Seventh Circuit, inter partes review (IPR) proceedings, as well as many arbitrations and mediations. His practice encompasses U.S. and international clients in the following highly technical fields:

  • Mechanical arts
  • Electronics
  • Pharmaceuticals
  • Computer products
  • Chemical processing
  • Telecommunications
  • Medical devices
  • Biotechnology

A respected thought leader, Don has spoken and published on timely issues regarding patents and other intellectual property areas. Prior to joining Michael Best’s Intellectual Property Practice Group, Don practiced for five years at a large law firm in California, followed by a stint as a prosecutor in the Santa Clara, California Office of the District Attorney. 


The following list of cases provide some examples of Don’s litigation experience

  • Lead counsel for defendants in patent action involving paper towel dispensers
  • Lead counsel for defendant and counterclaimant in patent infringement and unfair competition action involving radio frequency identification systems
  • Lead counsel for defendant in patent action involving conversion of carbureted V-twin motorcycle engine to electronic fuel injection
  • Lead counsel for defendant in patent action involving laser guided saw
  • Lead counsel for wireless service provider in patent infringement action involving portable wireless electronic devices
  • Lead counsel for defendant in trade secret action involving pool equipment
  • Lead counsel for defendants in patent and trademark action involving paint sprayer device
  • Lead counsel for plaintiff in action involving patent on commercial refrigeration merchandiser equipment
  • Lead counsel for four defendants in multidistrict litigation in patent action involving production of corn oil from ethanol
  • Lead counsel for defendant in infringement action involving patent on skid steer loader
  • Lead counsel for defendant in infringement action involving dietary fiber gels

Honors & Recognitions

  • “Lawyer of the Year" (Madison Area), Litigation - Patent, The Best Lawyers in America©, 2018, 2021
  • The Best Lawyers in America©, Litigation - Intellectual Property and Litigation - Patent, 2006-present
  • The Midwest’s Best Lawyers©, Litigation - Intellectual Property and Litigation - Patent, 2021
  • Leading Intellectual Property Lawyer, Chambers USA, 2008-present
  • Litigation Star, Benchmark Litigation, 2013-present
  • IP Stars, Managing Intellectual Property magazine, 2015-present
  • “Lawyer of the Year” in Litigation-Intellectual Property, The Best Lawyers in America©, 2016
  • IAM Patent 1000 – World’s Leading Patent Practitioners, 2015-present
  • "Wisconsin Super Lawyers" list, Intellectual Property Litigation, Super Lawyers Magazine

Professional Activities

  • Member, State Bar of California
  • Member, State Bar of Wisconsin
  • Member, American Bar Association, Intellectual Property Litigation Section
  • Member, American Intellectual Property Law Association
  • Member, Federal Circuit Bar Association





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