James L. Lovsin is Chair of MBHB’s PTAB Trials Practice Group. Leveraging his experience litigating patents, trademarks, trade dress, copyrights, and trade secrets, Mr. Lovsin guides clients through intellectual property litigation and appeals in the federal courts, the Patent Trial and Appeal Board, and the Trademark Trial and Appeal Board. He also has substantial experience helping clients build and maintain patent and trademark portfolios.

Mr. Lovsin draws on professional experience as an engineer in the energy industry, as well as undergraduate coursework in mechanical engineering, to gain an in-depth understanding of the technology at issue and develop effective ways to protect, enforce, and defend clients’ intellectual property rights. Prior to law school, Mr. Lovsin worked for ExxonMobil Refining & Supply Company as a reliability engineer and as a mechanical engineer at the Joliet Refinery.

Mr. Lovsin regularly represents clients before the U.S. Court of Appeals for the Federal Circuit. He has been lead appellate counsel and has argued before the Federal Circuit. He also has significant experience preparing merits briefs and amicus briefs. Prior to joining MBHB, he served as law clerk to the Honorable Pauline Newman of the Federal Circuit.

Outside of work, he coaches his children’s t-ball, soccer, and basketball teams and serves as a precinct committeeperson in his northern Illinois community.

  • J.D., University of Illinois College of Law,

    Summa Cum Laude; Order of the Coif; Executive Editor, University of Illinois Law Review

  • B.S., Northwestern University,

    Mechanical Engineering, with Departmental Honors; Pi Tau Sigma

Bar Admissions
  • Illinois
  • U.S. Patent & Trademark Office
  • Richard Linn American Inn of Court
  • Intellectual Property Owner’s Association
  • Federal Circuit Bar Association
  • PTAB Bar Association
  • Lake County Bar Association


Litigation and Appeals

  • Secured denial of institution of inter partes review from the Patent Trial and Appeal Board for telecommunications company KPN.
  • Secured summary affirmance from the Federal Circuit of the Patent and Trial and Appeal Board’s judgment confirming patentability of the client’s patent related to conductive gels.
  • Secured permanent injunctions for innovator pharmaceutical corporation enforcing patent related to stem cell mobilization.
  • Secured summary judgment of no trade dress for tool manufacturer in litigation involving claim of packaging trade dress infringement.
  • Secured successful settlement for suppliers and re-sellers of lighting ballasts in litigation involving claims of patent infringement, trade secret misappropriation, trademark infringement, and breach of contract.

Patent and Trademark Procurement and Counseling

  • Prepared and prosecuted patent applications for a leading energy company, a medical products company, a transit-packaging company, a company in software, electronics, and mechanical products, and more.

Published Articles

Eric Moran and James Lovsin “Register Early and Often or at Least Try to: Preparing for Copyright Enforcement” Fall 2017 Snippets.

James Lovsin and Andrew Williams, “Post-Grant Review Estoppel – Looking Forward by Looking Back at Estoppel in Inter-Partes and Covered-Business-Method Review” Winter 2017 Snippets.

Grantland Drutchas and James Lovsin, “Preclusive Effect Of PTAB Decisions Gets A Fresh Look” IP Law360.com, June 19, 2015. (reprinted from Spring 2015 Snippets)

Note, A Constitutional Door Ajar: Applying the Ex parte Young Doctrine to Declaratory Judgment Actions Seeking State Patent Invalidity, 2010 U. Ill. L. Rev. 265.