John Vandenberg

John Vandenberg

John Vandenberg is a Partner with Klarquist Sparkman, LLP. He is a registered patent attorney who has been litigating patent lawsuits for 36 years. John argued the winning side in Nautilus v. Biosig (U.S. 2014), the only Supreme Court case in the past 70 years addressing Sec. 112. He is also the author of the PatentDefenses.com patent law summary.

For more information or to contact John, please visit his Firm Profile Page.


Posts by John Vandenberg


Perspective: Weakening Alice Will Weaken the U.S. Patent System’s Second Engine of Innovation

Today is Alice’s fifth birthday; some may not be celebrating, but as a birthday gift, John Vandenberg argues the decision was not new law and should …
By John Vandenberg
1 year ago 27