Attorney profile
Oppenhuizen Law PLC
The short version
Oppenhuizen Law PLC is a Grand Rapids patent and trademark practice where USPTO-registered attorney David Oppenhuizen handles patents, trademarks, copyrights, and IP strategy directly for inventors, small and mid-sized businesses, and foreign attorneys.
Strengths
- David Oppenhuizen is a USPTO-registered patent attorney with more than 20 years of IP experience, a mechanical engineering degree from Kettering University, and prior work as a design engineer.
- The firm covers a broad range of IP needs in one place, including provisional, utility, design, and PCT patents; trademark searches, federal and state registration, and foreign registration; copyrights; NDAs; licensing; and domain name disputes.
- Clients work directly with David rather than a junior associate or paralegal, according to the firm's own description of how matters are staffed.
- Reviewers repeatedly cite prompt responses, thorough and well-prepared filings, and clear explanations of the patent and trademark process.
- The firm advertises flat-fee pricing for most core services and a $250 initial consultation that is applied toward the matter if retained, and reviewers frequently describe fees as reasonable compared with larger IP firms.
Considerations
- Oppenhuizen charges $250 for an initial consultation and says the fee is credited toward the matter if representation follows.
- Clients describe prompt updates and digestible explanations of IP hurdles rather than recurring problems contacting the attorney.
About Oppenhuizen Law PLC
Oppenhuizen Law PLC is a Grand Rapids, Michigan intellectual property practice led by David Oppenhuizen, a USPTO-registered patent attorney who has practiced since 2006 and brings more than 20 years of IP experience to patents, trademarks, copyrights, and related agreements. The firm operates from an office at 625 Kenmoor Ave SE in Grand Rapids and works with clients well beyond Michigan, including businesses and inventors across the United States and foreign attorneys and their clients in Europe, Asia, Australia, Canada, South Africa, and Turkey. David holds a B.S. in Mechanical Engineering from Kettering University and a law degree with a certified specialization in Intellectual Property from Michigan State University College of Law, and he worked as a design engineer before practicing law - a background the firm presents as a technical advantage in understanding inventions.
Patent work spans provisional applications, utility and design patents, PCT and international filings, patent searches and opinions, and post-issuance proceedings. On the trademark side, the firm handles clearance searches and opinions, federal and state registration, common law counsel, foreign trademark registration, Madrid Office Action responses, and cease and desist letters. Additional services include copyright registration, non-disclosure and licensing agreements, infringement and validity opinions, and domain name disputes. The firm reports 100+ patents issued across multiple industries and 650+ trademark registrations in more than 40 countries, and states that clients work directly with David rather than a junior associate or paralegal. Pricing is described as flat-fee for most core services, with a $250 initial consultation that is applied toward the matter if the client is retained.
Across 22 public reviews, the practice holds a 5.00 rating. Reviewers most often describe prompt communication, careful and well-prepared filings, quick turnaround, and a process that is explained in plain, digestible terms. Several mention reasonable fees relative to larger IP firms, and a recurring thread involves proactive reminders and handling of patent and trademark renewals. Reviewers include individual inventors, small business owners, a marketing agency principal, and a Thailand-based professional filing on behalf of clients - a range consistent with the firm’s stated mix of domestic and foreign-facing work.
The office is at 625 Kenmoor Ave SE Suite 301, Grand Rapids, MI 49546. The listed telephone number is +1616-242-9550. The practice website is www.oppenhuizen.com.
Recurring feedback
What clients consistently mention
- Responsiveness and communication: reviewers frequently note prompt replies by email and phone and consistent updates throughout patent and trademark matters.
- Clarity of process: multiple accounts describe the attorney explaining patent and trademark steps in plain, digestible terms, including hurdles and how to navigate them.
- Filing quality and speed: feedback commonly references thorough, meticulously prepared applications and quick turnaround on filings.
- Pricing perception: reviewers repeatedly characterize fees as reasonable or favorable compared with larger IP firms, with flat-fee pricing noted.
- Renewal and ongoing portfolio support: several reviewers describe proactive monitoring of patent and trademark renewals and paperwork handled on the client's behalf.
All reviews
5 out of five stars based on 22 reviews.
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