John P. Guenther

John P. Guenther

Litigation - Intellectual Property Patent Law Trademark Law
Recognized in Best Attorney USA since 2016

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Reviews

4.1 / 5

7 Reviews

1,051 Profile Views

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Amara Okonkwo

Jan 05, 2026

Always Available and Kept Me Informed Every Step

As a startup founder, I needed guidance on trademark registration for our new medical device. John was incredibly responsive—he answered emails within hours and scheduled calls promptly. His clear exp...

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Henrik Johansson

Jan 05, 2026

Deep Industry Knowledge That Secured Our Patent

Our aerospace company faced a complex patent infringement case involving composite materials technology. John's expertise in both patent law and the aerospace industry was immediately apparent. He dem...

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Yuki Nakamura

Jan 05, 2026

Turned a Threatening Lawsuit Into a Major Settlement

When a competitor sued our automotive parts company for alleged trademark infringement, we feared lengthy litigation. John meticulously analyzed their claims and our branding history, identifying weak...

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Fatima Al-Rashid

Jan 05, 2026

Understood the Emotional Toll and Provided Reassurance

As a small business owner, discovering our trade secrets were compromised felt devastating. John showed genuine compassion while guiding us through enforcement actions. He listened patiently to our co...

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Diego Alvarez

Jan 05, 2026

Exemplary Professionalism That Enhanced Our Corporate Reputation

Our Fortune 500 company engaged John for high-profile product clearance in the telematics sector. His professionalism was evident from initial consultations through final approvals. He coordinated sea...