David OppenhuizenDavid Oppenhuizen is the principal of Oppenhuizen Law PLC, which is located on the southeast side of Grand Rapids just minutes off I96 with convenient parking just steps from our door.


I am married and have three children, and my favorite thing in life is spending time with my family.  When the weather is warm here in Michigan, I also try to golf, brew beer, and get outside whenever possible.  In the fall I enjoy watching Michigan State football, and in the winter I try to work as much as possible so that I can enjoy the warmer weather when it arrives. My education, credentials, and professional accomplishments are listed below:

Professional Experience and Education


Bar Admissions, Licenses, and Memberships

  • Registered Patent Attorney, U.S. Patent & Trademark Office, 2007 (first registered as a Patent Agent in 2005)
  • Licensed Attorney, State Bar of Michigan, 2006
  • U.S. District Court for the Western District of Michigan, 2006
  • U.S. District Court for the Eastern District of Michigan, 2007
  • Top Lawyer 2021, Grand Rapids Magazine
  • Top Lawyer 2019, Grand Rapids Magazine
  • Rising Star in the field of Intellectual Property, 2017
  • Rising Star in the field of Intellectual Property, 2016


Professional Experience I first began working as an engineering co-op while I was a student at Kettering University in 1996.  I worked for one of the world’s leading automotive suppliers.  My work in the automotive industry covered a vast array of technical fields, including design, manufacture, plastic thermoforming, metal machining, failure analysis, heat transfer, metallurgy, sheet metal forming, machine vision, and basic electronics. After graduating from Kettering University I worked as a design engineer at a Michigan-based water heater manufacturer where I helped design and develop some of the industry’s most energy efficient tank-based water heaters.  I then enrolled in law school as a full-time student in 2003. After graduating from law school, I took a position as an associate patent attorney with a small firm in the metropolitan Detroit area.  I spent some time litigating patent, trademark, and copyright cases, but found that what I really enjoyed doing was representing clients before the U.S. Patent and Trademark Office.  I worked at that firm for 7 years before taking my practice back to Grand Rapids, Michigan and opening my own law practice in 2014.

Exemplary Work Product

(unless specified otherwise, David Oppenhuizen drafted the original application and performed all substantive work resulting in the issuance)

Trademarks An updated list of trademark applications and registrations can be located on the U.S. Patent and Trademark Office’s website.

Utility Patents

Design Patents