Minnesota

Patent attorneys in Minnesota

Minnesota hosts 1,421 active patent practitioners registered with the USPTO Office of Enrollment and Discipline. Patent attorneys and patent agents can both prepare and file patent applications, but only patent attorneys can also offer legal advice on prosecution strategy, freedom-to-operate analyses, and infringement opinions in Minnesota. Practitioners are concentrated across 20 cities, with the largest clusters in the metros listed below. Notable firms with multiple registered practitioners in the state include Merchant & Gould, P.C., Fredrikson & Byron, P.A., and The Law Office of Paul E Lacy.

Top cities in Minnesota

All practitioners in Minnesota

Paul E Lacy

Reg. 38946

Patent attorney

The Law Office of Paul E Lacy

Stillwater, MN · 55082

651-439-8090

Andrew J Lagatta

Reg. 62529

Patent attorney

Merchant & Gould, P.C.

Minneapolis, MN · 55402

612-371-5383

Robert Wyman Lahtinen

Reg. 19016

Patent attorney

Rochester, MN · 55902

507-288-5368

Nancy M Lambert

Reg. 44856

Patent attorney

Donaldson Company

Bloomington, MN · 55431

952-887-3238

Mark S. Landauer

Reg. 79727

Patent attorney

Maple Grove, MN · 55311

952-693-8421

Andrew C Landsman

Reg. 66693

Patent attorney

Husch Blackwell LLP

Minneapolis, MN · 55402

612-852-2700

Thomas A Lane

Reg. 53181

Patent agent

Medtronic

Mounds View, MN · 55112

763-526-2008

Allen R. Lang

Reg. 58829

Patent attorney

Schwegman Lundberg & Woessner, P.A.

Minneapolis, MN · 55402

612-373-6900

Nicholas P. Lanzatella

Reg. 63803

Patent attorney

Schwegman, Lundberg & Woessner

Minneapolis, MN · 55402

651-349-9580

Julie A. Lapos-Kuchar

Reg. 61885

Patent agent

3M Innovative Properties Company

St. Paul, MN · 55144

651-207-9655

James A Larson

Reg. 40443

Patent attorney

Hamre,Schumann, Mueller & Larson, P.C.

Minneapolis, MN · 55402

612-455-3805

Robert G Larson

Reg. 68055

Patent attorney

Woodbury, MN · 55129

612-281-3703

Chelsea Lassiter

Reg. 79816

Patent agent

Rochester, MN · 55904

Dianne P Latham

Reg. 35649

Patent attorney

Edina, MN · 55439

952-941-3542

Sanjiv P Laud

Reg. 76497

Patent attorney

McCurdy Laud, LLC

Minneapolis, MN · 55415

612-416-3341

Mai-Tram D Lauer

Reg. 43589

Patent attorney

Westman, Champlin & Koehler, P.A.

Minneapolis, MN · 55402

612-330-0583

Ronald Lee Laumbach

Reg. 25487

Patent attorney

Burnsville, MN · 55337

952-894-7245

Ashley E LaValley

Reg. 69072

Patent attorney

Avantech Law, LLP

Minneapolis, MN · 55402

312-888-7297

Paul J. LaVanway· Jr.

Reg. 64610

Patent attorney

Fredrikson & Byron, P.A.

Minneapolis, MN · 55402

612-492-7000

Mark D Lavender

Reg. 54254

Patent attorney

OLYMPUS CORPORATION OF THE AMERICAS

Brooklyn Park, MN · 55445

763-416-3000

Diem D Le

Reg. 54256

Patent agent

American Stable-isotope Labeled Compounds

St Paul, MN · 55119

651-730-7693

Thomas J Leach· III

Reg. 53188

Patent attorney

Merchant & Gould, P.C.

Minneapolis, MN · 55402

612-336-4665

David S Lee

Reg. 38222

Patent attorney

Hamre, Schumann, Mueller & Larson, P.C.

Minneaplis, MN · 55402

612-455-3841

Jordan R. Lee

Reg. 83289

Patent attorney

Fredrikson & Byron, P.A.

Minneapolis, MN · 55402

612-492-7054

Joseph E Lee

Reg. 57441

Patent attorney

Merchant & Gould, P.C.

Minneapolis, MN · 55402

612-766-6094

Kirby W Lee

Reg. 47744

Patent attorney

Ecolab

St. Paul, MN · 55102

630-305-1783

Nathan T. Lee

Reg. 61622

Patent agent

Medtronic, Inc.

Mounds View, MN · 55112

763-526-0233

Teng W. Lee

Reg. 78608

Patent attorney

Northfield, MN · 55057

617-640-1270

Thomas Lee

Reg. 66396

Patent attorney

HSML P.C.

Minneapolis, MN · 55402

612-455-3844

Thomas W Leffert

Reg. 40697

Patent attorney

Dicke, Billig & Czaja, PLLC

MINNEAPOLIS, MN · 55402

612-767-2519

Common questions

Do I need a patent attorney based in Minnesota?

No. Every USPTO-registered patent practitioner is licensed to file applications on behalf of inventors in any state, regardless of where the practitioner's office is. Choosing a Minnesota-based practitioner can simplify in-person inventor signings, local meetings, and same-time-zone calls, but it is not a legal requirement.

How many patent attorneys are licensed in Minnesota?

1,421 active USPTO-registered patent practitioners list a Minnesota office address on the OEDCI roster. This includes both patent attorneys (who can also offer legal advice) and patent agents (who can prepare and file patents but not offer broader legal advice).

What is the difference between a patent attorney and a patent agent?

Both pass the USPTO Patent Bar and can prepare, file, and prosecute patent applications. Only patent attorneys also hold a state bar license, meaning they can additionally offer legal advice on infringement, licensing, and litigation strategy. Patent agents tend to charge less per hour and are common at large in-house IP departments.