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From lead medical-device companies to major high-tech manufacturers, clients turn to Greene Espel to represent them in significant disputes involving patents and other intellectual property rights.

Our lawyers have resolved patent disputes and provided counseling on patent issues in a wide variety of technology areas. We take pride in working with in-house and outside experts to master complicated technical subjects and in presenting those concepts to judges and juries in an understandable way.  Our lawyers have litigated patent matters in district courts across the United States, at the Federal Circuit, and before the Patent Trial and Appeal Board. We also conduct pre-suit investigations and provide opinion or consulting services for potential and pending patent litigation.

Related Practices

  • Copyright Litigation

    Greene Espel is frequently called upon to protect copyright interests as well as defend against claims of copyright infringement.

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  • Trade Secret Litigation

    From burgeoning high-tech companies to established international manufacturers, healthcare giants, and established financial services and insurance institutions, clients regularly turn to Greene Espel to represent them in disputes involving trade secrets.

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  • Trademark Litigation

    From premier brand-owners to niche device manufacturers, clients seek Greene Espel’s counsel in complex disputes involving trademarks.

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Events & Presentations

  • January 10, 2025. Sybil Dunlop to Present Seminar on Successful Deposition Strategy for Minnesota CLE
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EXTRAORDINARY NEWS

Chambers USA Recognizes Greene Espel for Commercial Litigation and Labor & Employment in Minnesota; Jeanette Bazis, Sybil Dunlop, Jenny Gassman-Pines, Kate Swenson, and X. Kevin Zhao Ranked Lawyers

The rankings are the result of in-depth market analysis and independent research conducted by an experienced team of researchers. Chambers rankings are the definitive mark of excellence across the legal industry.

Minnesota Lawyer Recognizes Jeanette Bazis, Sybil Dunlop, Jenny Gassman-Pines, Mark Johnson, and X. Kevin Zhao on the Minnesota Legal 250

The Minnesota Legal 250 honors the most influential attorneys across Minnesota’s legal landscape.

Greene Espel Recognized in 2026 "Best Law Firms" Among Nation's Top Firms

The firm has been ranked in the first tier in Minneapolis – the highest ranking available in each city – in several key practices.

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