Allen A. Arntsen

Allen A. Arntsen is a partner and trial attorney with Foley & Lardner LLP. Mr. Arntsen represents and counsels clients in patent, trademark and copyright protection and enforcement actions; energy and land use litigation; and general commercial matters. He has successfully represented clients in over 40 trials, most to a jury, and has obtained preliminary injunctive or dispositive relief for his clients in scores of other cases. Mr. Arntsen has been lead counsel in over 50 patent infringement actions, along with numerous trademark, trade secret and copyright cases. He takes pride in his ability to explain complex intellectual property and technology issues to judges and juries. Mr. Arntsen is member of the firm’s Intellectual Property Litigation and Business Litigation & Dispute Resolution Practices and the Energy Industry Team.

Mr. Arntsen has substantial experience in federal and state condemnation actions, zoning and land use appeals, developer issues, annexations, and public financing. He has represented both acquiring agencies and landowners in over 50 contested eminent domain cases. Mr. Arntsen has been lead trial counsel in cases involving a condemnor’s right to take property, relocation benefits, and valuation issues, before condemnation commissions, courts, and juries.

Mr. Arntsen has been lead counsel in actions affecting all manner of energy infrastructure disputes, including natural gas transmission pipelines, electrical transmission lines, hydroelectric facilities and wind farms. He also has been lead counsel in numerous telecommunications disputes in which he successfully obtained judicial decisions for his clients.

Good to know

Areas of Practice 1) Business Litigation & Dispute Resolution, 2) IP Litigation, 3) Patent Litigation, 4) Trademark and 5) Copyright & Advertising Litigation
Law School The University of Wisconsin
Education University of Wisconsin - Madison (J.D., 1981)
Bar Member / Association The Wisconsin State Bar
Most recent firm Foley & Lardner LLP
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