Dean Eyler

Principal, Intellectual Property Litigation Chair
Dean Eyler Image
Direct: 612.632.3016

Support Staff

Lori Kleinschmidt
Direct: 612.632.3441

Dean Eyler focuses his practice on complex commercial and intellectual property litigation. He chairs Gray Plant Mooty’s Intellectual Property Litigation team and has substantial experience in litigating trademark, trade dress, patent infringement, patent ownership, copyright, trade secret, false advertising and unfair competition cases. Dean has been repeatedly recognized by World Trademark Review, where he has been described as “redoubtable” and “a go-to on complex or unusual disputes.” He also represents clients in a wide variety of commercial litigation, real estate-related disputes, and in appellate practice. Dean previously served as chair of the Recruiting Committee for the firm.

Dean is also committed to pro bono representation and work in the community. He regularly represents clients seeking asylum, has worked on many human rights projects, and represents tenants in housing court matters. Dean was named Gray Plant Mooty’s Pro Bono All Star for 2006. He is the chair of the advisory board for the Minnesota Urban Debate League.  In 2016, Dean accepted a Volunteer Award from The Advocates for Human Rights on behalf of the firm’s asylum team, which he leads. Dean was also recognized as a 2016 Attorney of the Year by Minnesota Lawyer for his work with a team that established the new Appeals Self-Help Clinic at the state law library.

After law school, Dean served as a law clerk for Donald P. Lay, former Chief Judge of the United States Court of Appeals for the Eighth Circuit. In addition, he has been an adjunct professor at the William Mitchell College of Law and a Special Assistant City Attorney for the City of Minneapolis.

Dean, his wife, and their two children live in Plymouth. When he is not practicing law, Dean enjoys skiing, basketball, and reading.


Intellectual Property Cases

  • Higher Dimension Materials v. Performance Fabrics (tried two-week AAA arbitration in 2016 resulting in permanent injunction and award of lost royalties for our client based on breach of license agreement, misappropriation of trade secrets, and infringement of patent)
  • Concaten, Inc. v. AmeriTrak Fleet Solutions, 131 F. Supp. 3d 1166 (D. Col. 2015) (obtained judgment on the pleadings dismissing all five asserted patents as directed to ineligible subject matter; affirmed by Federal Circuit Oct. 11, 2016)
  • Schlagel, Inc. v. S-M Enterprises, Inc., Civ. No. 13-cv-0446 (represented Schlagel in enforcing one of its patents related to grain handling equipment against competitor; following initial discovery the case resolved favorably, and competitor redesigned its product)
  • Birchwood Laboratories v. Battenfeld Technologies, Nos. 09-cv-3555(MJD/JJK), 11-cv-883(MJD/JJK) (D. Minn. 2012) (represented sporting goods manufacturer in declaratory judgment action to invalidate competitor’s patent, and defending patent infringement claims, and in defending parallel patent false marking case; successfully resolved before trial)
  • Saul Zaentz Co. v. Wozniak Travel, Inc., 627 F. Supp. 2d 1096 (N.D. Cal. 2008) (granting summary judgment in client’s favor, dismissing trademark infringement claims by producer of Lord of the Rings films, where client had used its mark HOBBITT TRAVEL for three decades)
  • Taylor Corp. v. Four Seasons Greetings, LLC, 403 F.3d 958 (8th Cir. 2005) (successfully represented plaintiff in copyright infringement dispute regarding greeting card designs; affirmed on appeal)
  • Straumann Comp. v. Lifecore Biomedical, Incorporated, 278 F. Supp. 2d 130 (D. Mass. 2003) (represented defendant dental implant manufacturer in trade dress product design case; motion for preliminary injunction denied; summary judgment for defendant)

Commercial Litigation

  • Biotel, Inc. v. CardioNet, Inc., Case No. 09-cv-02013 (D. Minn.) (represented public medical device company pursuing breach of merger agreement; case resolved with merger closing)
  • Northern PCS Services, LLC v. Sprint Nextel Corp., 2007 WL 951546 (D. Minn. March 27, 2007) (represented regional affiliate in dispute with Sprint Corporation regarding exclusivity rights; prevailed on summary judgment motion, which led to buyout for over $300 million)
  • Paul Kaiser v. Direct Focus, Inc., 2004 WL 2050560 (Minn. App. Sept. 14, 2004) (won summary judgment as lead counsel for fitness equipment manufacturer in dealer termination case; affirmed on appeal)
  • Chafoulias v. Peterson and ABC, 668 N.W. 2d 642 (Minn. 2003) (represented media defendant in defamation case: judgment for defendant, that plaintiff is a limited purpose public figure, who cannot prove actual malice, affirmed by Minnesota Supreme Court)
  • Represented large tire manufacturer in negligence action against insurance broker, resulting in $3.1 million jury award
  • Lead counsel for plaintiffs and defendants in several real estate and commercial landlord-tenant cases
  • Represented plaintiffs and defendants in significant minority shareholder cases
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