Nathan D. Louwagie - Carlson Caspers


Phone: (612) 436-9656

Nate practices intellectual property law at Carlson Caspers. He has counseled clients from a broad range of industries in all types of intellectual property disputes. He has represented clients in litigation in Federal Court and at the United States Patent and Trademark Office.

Nate is a registered patent agent with the US Patent and Trademark Office. He served as a legal extern for the Hon. Patrick J. Schiltz of the US District Court for the District of Minnesota. He also is a co-chair of the Intellectual Property Committee for the Minnesota Chapter of the Federal Bar Association.

After earning his undergraduate degree in chemistry, Nate served for one year as a paid research intern in Medtronic Inc.’s Technical Internship Program. At Medtronic, he worked on a team in collaboration with an outside technology partner to achieve demonstrably higher volumetric energy density in implanted medical batteries. During college, Nate was involved in research projects both at St. John’s University and at Southwest University in Chongqing, China. He is the co-author of an article published in the Journal of Chemical Research related to this research. At the firm, Nate leads the Associate Development group for business development initiatives.

Minnesota Super Lawyers® lists Nate as a “Rising Star” for 2019-2022. Nate has represented clients in pro bono matters involving landlord-tenant issues, in conjunction with the Volunteer Lawyers Network. After finishing his internship at Medtronic, he served as volunteer in the IFRE program in Nepal. Nate played rugby at St. John’s University and was a member of the Eastside Banshees Rugby Club for several years.


University of Minnesota Law School, JD, cum laude
Concentration in Intellectual Property and Technology
Kenneth R. & Lillian Smith Scholarship
Dean’s List

St. John’s University, BA
Phi Beta Kappa
Distinction in Chemistry
Dean’s List


Minnesota Supreme Court
U.S. District Court for the District of Minnesota
U.S. Court of Appeals for the Federal Circuit
U.S. Patent and Trademark Office


Co-chair of the Intellectual Property Committee for the Minnesota Chapter of the Federal Bar Association.


Speaking Engagements, Webinars, and Presentations

“Intellectual Property Portfolio: Strategic Management Tips,” The Knowledge Group, July 28, 2022. For a Vimeo recording, click here.

“Inter Partes Reviews & Post Grant Proceedings: Winning Strategies the 2020 Battlefield,” June 25, 2020. For a Vimeo recording, click here.

“Helsinn v. Teva: On-Sale Bar Under America Invents Act Clarified,” December 20, 2017. For a Vimeo recording, click here.

Articles & Publications

Nate was featured in the article, “Carlson Caspers Associates: Deliver Ingenuity to IP Clients,” Attorney at Law Magazine, May 7, 2021.


Nate was named a “Rising Star” in Minnesota Super Lawyers for 2019-2022.

Nate was listed in Patexia’s ANDA Litigation Intelligence Report, 2022 Edition, recognizing Carlson Caspers as among the Top 10 ANDA Best Performing Firms and the Top 25 Most Active Firms for Hatch-Waxman Litigation.