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Calfee’s intellectual property litigators work with clients to protect their investments in ideas. Serving a broad spectrum of public and privately held companies, our attorneys represent plaintiffs and defendants with respect to patent, copyright, trade secret, trademark, trade dress, product configuration, unfair competition, and licensing claims. Our attorneys focus on all major scientific disciplines including mechanical, electrical and chemical engineering; chemistry; biotechnology; computer hardware, software and circuit design; semiconductors; and architecture.

The litigators in our Intellectual Property group have gained extensive and valuable intellectual property litigation experience dating back to the 1980s when the group was formed. At any time, Calfee has 20+ attorneys devoting all or a substantial amount of their time to intellectual property litigation. Calfee’s IP litigators also are supported by and can draw upon the sophisticated case management technology and personnel of Calfee’s extensive general litigation practice if needed.

Our intellectual property litigators have represented clients in matters before the USPTO, federal and state courts in many of the 50 states, as well as matters involving the U.S. Customs Office, International Trade Commission and Federal Trade Commission. Our attorneys have briefed and argued cases to the Court of Appeals for the Federal Circuit and other appellate courts. Many of these matters were for clients whose patent or trademark portfolio also is maintained by Calfee. 

Additionally, understanding that intellectual property litigation can be very expensive, the litigators in our Intellectual Property group advise our clients as to the full range of alternatives for resolving intellectual property disputes including licensing, cross-licensing or joint venture negotiations, specialized proceedings in the USPTO called “IPRs,” alternative dispute resolution proceedings, and litigation in federal and state courts.


Chambers USA Rankings for Calfee IP and Litigation

For well over a decade, our Intellectual Property group has been ranked in Band 2 and recognized by Chambers USA: America’s Leading Lawyers for Businessan industry-leading legal resource for professionals in search of qualified, experienced legal counsel.

Most recently, in 2018, Chambers USA researchers report our group is held in "very high regard" by fellow practitioners who note our extensive experience representing clients in wider patent and trademark matters, IP litigation matters, appellate work, and advising companies on managing IP assets in China. Additionally, our IP Practice Group Chair, John Cipolla, is one of the highest-ranked IP attorneys (Band 2) in Ohio and multiple individual attorneys in Calfee’s IP group are also highly ranked.

Our IP litigators often rely on our general litigation group for assistance which has a Chambers USA Band 4 Ranking (Ohio)

Consistent for the past 10+ years, our Litigation group and individual litigation attorneys have been ranked and recognized by Chambers USA: America's Leading Lawyers for Business, an industry-leading legal resource for professionals in search of qualified, experienced legal counsel. 

In 2018, Chambers USA researchers report that Calfee's Litigation group is known for frequently advising on "plaintiff and defense-side commercial litigation matters, offering considerable strengths in securities, product liability, antitrust and construction disputes... [they also offer] experience in criminal litigation, defending a range of individuals and businesses facing regulatory enforcement actions. [They act] for clients in sectors including healthcare, financial services and manufacturing."

Chambers researchers reported that sources describe Calfee's Litigation group as "highly responsive and their lawyers are really devoted to their clients’ interest. They're thoughtful, creative and they work hard.”

Chambers researchers further noted that peers commented, “The quality is very high across the board; it’s a wonderful group of lawyers.”

U.S.News – Best Lawyers "Best Law Firm" Rankings

Calfee was selected for inclusion in the 2019 "Best Law Firms" rankings by U.S.News –Best Lawyers in America in Intellectual Property Litigation (national and metropolitan rankings).

Benchmark Litigation Rankings

Calfee has been selected for inclusion by Benchmark Litigation 2019 as a "Recommended" litigation firm in Ohio. Several of Calfee's Litigation attorneys have been ranked as Leading Litigators by Benchmark Litigation 2019.




Our attorneys have prosecuted and defended litigation involving, for example, the following subjects:

  • Agrigenetics
  • Alternative fuels
  • Automotive assemblies
  • Batteries
  • Business methods/websites
  • Chemical compositions
  • Computer software
  • Consumer products
  • Firearms
  • Homecare health aids
  • Locks and security devices
  • Medical devices
  • Mobile communications
  • MPEG video codes
  • Optical analyzers
  • Paint removal products
  • Personal computers and printers
  • Pharmaceuticals
  • Plumbing fixtures
  • Polymers
  • Polymer circuit protection devices
  • Semi conductors
  • Tires
  • Welders
  • Wheelchairs
  • Wireless communications devices and applications



  • Patent, trademark and copyright infringement
  • Patent interferences, reexamination and reissue proceedings before the U.S. Patent and Trademark Office
  • Trademark opposition and cancellation proceedings
  • Trade secret misappropriation
  • Unfair competition violations
  • International Trade Commission proceedings
  • U.S. Customs conflicts
  • Temporary restraining orders, preliminary and permanent injunctions, seize orders

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Chambers USA researchers reported that sources describe Calfee's Litigation group as "highly responsive and their lawyers are really devoted to their clients’ interest. They're thoughtful, creative and they work hard.” 

Chambers USA 2018

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