John D. Luken

P: (513) 977-8323
F: (513) 977-8141
John Luken focuses his practice primarily on patent infringement litigation as well as complex commercial and other intellectual property litigation. He has handled patent infringement cases involving a variety of services and products, including commercial forms and related software, software-related business method patents in the printing and financial services industries, metal beverage cans and closures, surface coal mining blasting methods, service station petroleum equipment, and retail security products.

While his practice now focuses largely on patent infringement matters, John has handled a wide variety of other types of complex litigation matters, ranging from securities, commodities, RICO and fraud claims arising out of complicated derivatives transactions to shareholder derivative litigation, environmental litigation, business and government contracts cases, and ERISA class action cases. John's approach is to focus first on client needs and objectives and to approach matters flexibly and creatively, rather than in a one-size-fits-all manner, so that complex matters can be resolved favorably, expeditiously, and cost-effectively.

John also chairs the firm's e-Discovery Group and is an active member of the influential Sedona Conference Working Group on Electronic Document Retention and Production (WG-1), participating in several Sedona drafting teams, including the Case for Cooperation (urging more rational, expeditious, and less expensive discovery processes).

In the community, John is the recipient of a number of leadership awards from the United Way and from the Cincinnati Bar Association. For the last six years, John has taken up distance running, and he now has completed 18 marathons.

Memberships & Affiliations

  • Downtown Cincinnati, Inc., Member of Clean and Safe Committee; Former Board Member and Executive Committee Member
  • United Way of Greater Cincinnati, Counsel; Chair, Ohio Public Policy Committee; Former Board Vice-Chair
  • Hamilton County Office of Maternal and Infant Health and Infant Mortality Reduction, Board Member, Former Board Chair
  • Leadership Cincinnati, Member, Class XXIV
  • Northwestern University Alumni Admission Council, Member, Host of Annual Interview Sundays


  • Peer Review Rated AV in Martindale-Hubbell
  • Cincinnati Bar Association - Community Service Award
  • United Way of Greater Cincinnati - Geier Family Leadership Award for Community Service
  • Listed in The Best Lawyers in America© for Commercial, Intellectual Property and Patent Litigation
  • Selected for the Ohio Super Lawyers® List since 2008