Tom Wilhelm Retires From Northwind

Spring 2019


Tom Wilhelm retired from Northwind IP Law, effective March 29th, 2019.


Read Tom’s Retirement Message Here

A New Line of Defense

Winter 2017


Stephen Jensen, president and senior patent attorney at Northwind IP Law, comments on the newly passed ‘Defend Trade Secrets Act’ which gives companies more power to protect their trade secrets.

Read the full article here.

Wilhelm Law renamed Northwind IP Law


Law firm’s name and brand change, commitment to the craft remains


Appleton, Wis. (May 2, 2016) – as of May 1, 2016, Wilhelm Law, an intellectual property (IP) law firm, will be known as Northwind IP Law. The name change comes as a result of the law firm’s reflection on updating goals and services provided.


“The name change to Northwind IP Law is a way for us to recalibrate as we move forward into the future and embrace new opportunities,” Stephen Jensen, patent attorney, owner, and president said. “We are proud of the past 30 years under the name Wilhelm Law and although our name is changing, the dedication we have provided to our clients will continue.”


The origin of the new name is from its location in the heart of the Fox Cities and New North. “Innovation is all around us, here, and throughout the state. Protecting that innovation by working closely with our clients is what drives us,” added Jensen.


Northwind IP Law, S.C., formerly Wilhelm Law, is a privately held, intellectual property (IP) law firm dedicated to providing its clients with personal attention and careful guidance in IP law matters. Headquartered in Appleton, Wis., Northwind IP Law’s services extend to more than 70 countries and include patent, trademark, copyright, and trade secret law, and related matters. To learn more, visit

Media Contact:

Lauree Frechette

Red Shoes PR, Inc.

(920) 574-3253

Law Basketball Tournament with Thomas Connelly

Spring 2015


Tom Connelly, one of our patent attorneys, has been recognized by his alma mater for his pioneering work in setting up a law school basketball tournament years ago. The tournament remains a popular diversion for law students and alumni alike.


Read about Tom’s achievement here

(Reprinted with permission of the copyright holder, Western New England University School of Law.)

Wilhelm Law Firm Changes Hands


We would like to announce that the ownership of our Northeast Wisconsin intellectual property law firm has changed hands from Tom Wilhelm to Stephen Jensen.

Tom Wilhelm started the law firm as a result of corporate restructuring at American Can, where Tom was a patent agent before he became an intellectual property lawyer. Tom has owned and operated Wilhelm Law since its beginning in 1983, even while he attended law school at the University of Wisconsin in the 1990s.

Recently, Tom sold the law firm to Steve, former associate patent attorney. For many years while Steve was living and working in the Minneapolis-St. Paul area, he was looking to return to his native Appleton, Wisconsin. The opportunity to return home came in 2013, when the timing was right for him to move to Appleton and join the Wilhelm Law firm.

Photo Editor

“Tom has been a wonderful person to work for, and a great mentor and colleague. The greater Fox Valley area owes him a debt of gratitude for his years of hard work and resolve to keep a full service intellectual property firm (handling patents, trademarks, and copyrights) right here in Appleton. He has assembled a highly effective team of business professionals and support staff that is well poised to offer top-notch IP services to a growing number of local businesses in the years to come,” said Stephen.

Although the ownership of Wilhelm Law firm has changed, Tom, and our other intellectual property attorney, Tom Connelly, will continue working for the firm to handle their respective matters.