Charles F. "Chuck" Knapp

Samuel T. Lockner enjoys a robust intellectual property and patent practice, which includes litigation, monetization, protection, trade secrets, and more. Lockner often serves as lead counsel representing companies in the biotechnology, biomedical device, bio-agricultural, and other related industrial sectors, both as plaintiffs and defendants. Many of Lockner’s cases are patent disputes under the Hatch-Waxman Act. His experience also includes Inter Partes Review (“IPR”) and...

David E. Kirkman is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. David E., who practices law in Minneapolis, Minnesota, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David E. is held by other top lawyers in the same geographic and legal practice area.

Karen M. Charlson is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Karen M., who practices law in Minneapolis, Minnesota, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Karen M. is held by other top lawyers in the same geographic and legal practice area.

Nicole focuses her practice primarily on professional liability defense for healthcare providers, including physicians, dentists, chiropractors, nurses, and others, as well as long-term care litigation. She handles a wide variety of claims, including those alleging negligence and lack of informed consent, as well as claims involving health care providers in administrative proceedings before their respective licensing boards. Nicole has successfully represented clients in all phases of civil l...

Laura Hammargren is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Defendants. Laura, who practices law in Minneapolis, Minnesota, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Laura is held by other top lawyers in the same geographic and legal practice area.

Mark provides legal services to professionals, including attorneys, accountants, architects, engineers, and title agents. He also represents product manufacturers and various companies in the construction and finance industries. His work involves primarily contested matters, including civil litigation, arbitration, mediation, and representation of individuals and companies before government licensing agencies. He is also one of the firm’s leaders, serving as a member of its Management C...

Arthur G. Boylan is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Arthur G., who practices law in Minneapolis, Minnesota, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Arthur G. is held by other top lawyers in the same geographic and legal practice area.

Alec Sherod has extensive experience successfully representing both public and privately held companies across many industries. He primarily practices in the following areas: Mergers and acquisitions Corporate finance Private equity and venture capital finance Commercial contracts Corporate strategy and governance Securities regulations Strategic corporate and business counseling Shareholder issues In his practice, Alec assists buyers, sellers and financial advisors in a wide variety of domes...

Thomas J. Radio is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law, Land Use and Zoning Law, Litigation - Construction and Litigation - Real Estate. Thomas J., who practices law in Minneapolis, Minnesota, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas J. is held by other top lawyers in the same geographic and legal practice area.

Harry Sieben has been with his law firm for 47 years. It has been built into one of Minnesota’s largest and most successful personal injury law firms by fighting for the rights of injured people. Harry has conducted jury trials resulting in record verdicts. He has recognition from state and national organizations for his success. He has consistently been selected by peers as a Super Lawyer, is listed in The Best Lawyers in America, Martindale-Hubbell , the most respected directory in th...