Atty. John P. Guenther
John’s practice encompasses all aspects of intellectual property law, including domestic and international patent acquisition and maintenance, trademark and copyright registration; intellectual property enforcement and litigation; trade secret protection; high-profile product and trademark clearances; large scale due diligence efforts; joint venture and commercial agreements; and licensing. In his practice, he counsels and represents a number of Fortune 500 companies, as well as a number of mid-size and start-up organizations, and universities.
Profile Summary
About John P. Guenther at a glance
John P. Guenther is a trademark and ip attorney based in Troy, Michigan, practicing at Reising Ethington PC. Admitted to practice in Michigan, State Bar of Michigan. Educated at University of Detroit Mercy (J.D., 1993). Recognitions include Best Lawyers in America — Litigation - Intellectual Property (2026), Best Lawyers in America — Patent Law (2026), and Best Lawyers in America — Trademark Law (2026). Serands clients in Troy, MI and the surrounding metropolitan area.
Want to Get Service From This Attorney?
Sign up free and choose one of the two methods below.
Have a legal question? Sign up free, submit it through the Ask the Attorney module and receive a focused answer from a specialist.
- Free to ask a question
- Answers from specialist attorneys
- Optional private / anonymous question
Request an online video meeting or an in-person consultation at the attorney's office. Pick a time that works for you and share the details securely.
- Online video meeting
- In-person at the attorney's office
- Secure messaging and payment
About
- John’s practice encompasses all aspects of intellectual property law, including domestic and international patent acquisition and maintenance, trademark and copyright registration
- intellectual property enforcement and litigation
- trade secret protection
- high-profile product and trademark clearances
- large scale due diligence efforts
- joint venture and commercial agreements
- and licensing
- In his practice, he counsels and represents a number of Fortune 500 companies, as well as a number of mid-size and start-up organizations, and universities
- He has significant experience in the automotive, plastics, aerospace, health system, medical device, advertising, and telematics fields/industries
- John is registered to practice before the United States Patent and Trademark Office (USPTO)
- He has been admitted to practice in the U.S. district courts in several states, the U.S
- Court of Appeals for the Federal Circuit, and the Supreme Court of the United States
- He is also a longtime member of the Licensing Executive Society (LES)
- From 1993-1999, John Guenther served as in-house legal counsel and Director of Intellectual Property for a prominent plastics company with both domestic and international operations
- His years of in-house experience provides him with unique insight and expertise in connection with intellectual property and practical business considerations
Practice Areas Explained
John P. Guenther's Areas of Practice
Each practice area below reflects the types of cases John P. Guenther handles, with a brief overview of what that area of law covers.
John P. Guenther is one of 23,222 trademark attorneys indexed nationally. Browse trademark attorneys in Michigan →
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
John P. Guenther is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Michigan →
Jurisdictional Context
Why local counsel matters in Michigan
Practicing law in Michigan. Legal matters in Michigan are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Troy are typically filed in the local municipal court or the appropriate Michigan state district court, depending on subject matter and amount in controversy. An attorney licensed in Michigan brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Michigan courts without local counsel or pro hac vice admission.
Looking for additional Michigan attorneys? Browse all attorneys in Troy or all attorneys in Michigan.
Frequently Asked
Common questions about John P. Guenther
Where is John P. Guenther's law office located?
What practice areas does John P. Guenther handle?
Where did John P. Guenther go to law school?
How can I contact John P. Guenther for a consultation?
What awards or recognition has John P. Guenther received?
Practice Areas
Education
Awards
Bar Admissions
Reviews
No reviews yet.