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The Right Way to Calculate Due Dates in Europe and China
If you are docketing in China or Europe, you may notice that calculated due dates don’t match the dates given by your foreign associate. This program will explain why and the proper way to calculate due dates in these countries.
Using Analytics as a Patent Annuity Decision Tool
Join us as our panel discusses best practices for the annuity payment decision process and how patent analytics can help assist annuity decision makers in making the best decisions possible.
IP Punch List for Software Companies
The Software field is a dynamic growing area. This webinar will focus on the challenges that software companies face in protecting their innovations both in the US and in other important jurisdictions.
Event Title
Schwegman is teaming up with WIPO to host an all-day complimentary "Advanced PCT Training" seminar that will provide insights to practitioners on amendments and recent developments to the PCT rules, developing a strategy for international filings and procedural safeguards.
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Schwegman Lundberg & Woessner

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Areas of Practice
  • Electrical & Computers
  • Mechanical & Electromechanical
  • Medical Devices
  • Software & E-Commerce
IP Services
  • Acquisition Due Diligence
  • Freedom To Operate
  • Opinions
  • Patent Analytics
  • Patent Prosecution
  • Portfolio Management & Analysis
Bar Admissions

Nathan Ellefson is a registered patent attorney providing patent prosecution, freedom to operate analysis, opinions, and portfolio management and analysis in electrical, computer, networking, software and mechanical technologies.  Previously, Nathan has worked as a design engineer in the medical device and electronic data storage industries.  There, Nathan designed analog and digital integrated circuits, printed circuit boards, radio frequency systems, test systems and performed failure analysis activities.  Nathan earned his Juris Doctor Magna Cum Laude from William Mitchell College of Law and his Bachelor of Science with Honors in Electrical Engineering from Iowa State University.


William Mitchell College of Law 
St. Paul, MN, 2008
J.D., Magna Cum Laude

Iowa State University 
Ames, IA, 2001
B.S.E.E., Honors

Bar Admissions
Bar Admissions
U.S. Patent and Trademark Office