Thomas R. Johnson

150 South Fifth Street, Suite 2200
Minneapolis, MN 55402
D: 612.371.5299
Contact My Assistant
Anne-Marie Larkin
D: 612.336.4752

With more than 15 years' experience as a trial attorney, Tom has tried numerous cases to verdict before both judges and juries, as well as successfully resolved numerous matters in contested arbitration hearings. Tom's skill at synthesizing complex ideas into understandable, interesting material for judges, juries, and others not trained in a particular area of science has helped his clients gain significant leverage in cases.

Tom's practice is concentrated on drug disputes arising under the provisions of the Hatch-Waxman act. He also has extensive experience in mechanical litigation, representing both patent owners and accused infringers in patent disputes involving such matters as high-tech air filters, pharmaceutical compositions, computer chip manufacturing, commercial irrigation systems, sophisticated golf and turf care equipment, optical lenses for 3D imaging, and industrial insulation.

Tom has handled many other types of complex intellectual property matters such as trademark infringement, copyright infringement, misappropriation of trade secrets, false advertising, and unfair competition. In addition, he routinely advises clients on intellectual property-related licensing and strategy issues.

Outside of the office, Tom is a fitness enthusiast. In addition to daily exercise, he enjoys downhill skiing and biking.


University of Minnesota Law School
J.D., cum laude, 1992

University of Wisconsin–River Falls
B.S. Economics, highest honors, 1989


Minnesota Supreme Court
U.S. District Court – District of Minnesota

Professional Affiliations

American Bar Association
Hennepin County Bar Association
Minnesota Intellectual Property Law Association

Publications & Speaking

Court’s Inducement Theory in Grokster Creates Uncertainty, Intellectual Property Today, August 2005

The Inequitable Conduct Defense Lives on: 2003 Federal Circuit Decisions and Their Impact, The John Marshall Review of Intellectual Property Law, September 2004 


All Media
CAFC Holds Generic Industry Skepticism Alone Insufficient to Preclude Motivation to Combine
CAFC Grants Mandamus Directing Transfer From Texas to Colorado
CAFC Holds Collateral Estoppel Applies to Inter Partes Reexam Proceedings
Perspectives on Federal Trade Secret Law: Impact of the DTSA on Your Company
For the first time ever, Congress passed legislation that federalizes trade secret law – the Defend Trade Secrets Act (“DTSA”). The DTSA, signed into law by President Obama on May 11, 2016, creates a new federal cause of action for the misappropriation ...
Press Releases
Merchant & Gould Successfully Represents Rudolph Technologies Before Trial Court and on Appeal, Gaining Quick Affirmance of $14 Million Patent Infringement Judgment
Merchant & Gould is pleased to have represented Rudolph Technologies, Inc. in recently securing an appellate victory in a patent infringement dispute with Camtek, Ltd. over semiconductor chip inspection technology.On Feb. 1, the U.S. Court of Appeals for ...
Press Releases
Thomas R. Johnson Returns To Merchant & Gould
Merchant & Gould, an intellectual property law firm, today announced that Thomas R. Johnson has rejoined the firm in its Minneapolis office. Johnson is a trial attorney with an emphasis on mechanical and pharmaceutical patent litigation.“We are excited ...
Press Releases
Merchant & Gould Promotes Johnson and Ehard in Minneapolis
Intellectual property law firm Merchant & Gould is pleased to announce that it has promoted Thomas Johnson and Andrew Ehard of the Minneapolis office as partners at the firm.Thomas Johnson's practice emphasizes patent and trademark litigation. He has ...
Supreme Court's Inducement Theory in Grokster Creates Uncertainty
The Inequitable Conduct Defense Lives On: 2003 Federal Circuit Decisions And Their Impact