Atty. Dennis John McMahon

Atty. Dennis John McMahon

Dennis John McMahon is a lawyer practicing patent application, trademark application, litigation and 3 other areas of law. Dennis received a B.S. degree from Villanova University in 2005, and has been licensed for 18 years.

New York New York 18 yrs experience 18 year
Call (929) 605-1835 Book Appointment

Profile Summary

About Dennis John McMahon at a glance

Dennis John McMahon is an Associate based in New York, New York, practicing at Fitzpatrick, Cella, Harper & Scinto. They have 18+ years of legal experience, licensed to practice since 2008. Their practice focuses on patent, trademark, m&a, and litigation. Admitted to practice in New Jersey (2008) and New York (2010). Educated at Villanova University (B.S. Mechanical, 2005) and Seton Hall University School of Law J.D. magna cum laude Seton Hall University School of Law J.D. 2008 Order of the Coif (—). Active member of New York Intellectual Property Law Association New Jersey Bar Association. Serands clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Dennis John McMahon is a lawyer practicing patent application, trademark application, litigation and 3 other areas of law
  • Dennis received a B.S. degree from Villanova University in 2005, and has been licensed for 18 years
  • Dennis practices at Fitzpatrick, Cella, Harper & Scinto in New York, NY

Practice Areas Explained

Dennis John McMahon's Areas of Practice

Each practice area below reflects the types of cases Dennis John McMahon handles, with a brief overview of what that area of law covers.

Patent Law

Dennis John McMahon is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in New York →

Trademark Law

Dennis John McMahon is one of 23,222 trademark attorneys indexed nationally. Browse trademark attorneys in New York →

Mergers & Acquisitions

Dennis John McMahon is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys in New York →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Dennis John McMahon is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in New York →

Jurisdictional Context

Why local counsel matters in New York

Practicing law in New York. Legal matters in New York are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in New York are typically filed in the local municipal court or the appropriate New York state district court, depending on subject matter and amount in controversy. An attorney licensed in New York 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 New York courts without local counsel or pro hac vice admission.

Looking for additional New York attorneys? Browse all attorneys in New York or all attorneys in New York.

Frequently Asked

Common questions about Dennis John McMahon

Where is Dennis John McMahon's law office located?
Dennis John McMahon's law practice is located in New York, New York. The firm is Fitzpatrick, Cella, Harper & Scinto. You can contact the office directly through this profile page.
What practice areas does Dennis John McMahon handle?
Dennis John McMahon focuses on patent, trademark, m&a, litigation. Each practice area listed reflects experience handling cases of that type in New York.
How long has Dennis John McMahon practiced law?
Dennis John McMahon has 18+ years of legal experience and has been licensed since 2008.
Where did Dennis John McMahon go to law school?
Dennis John McMahon earned their education at (B.S. Mechanical, 2005); (—).
How can I contact Dennis John McMahon for a consultation?
You can contact Dennis John McMahon directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

B.S. Mechanical
Villanova University
- 2005
Seton Hall University School of Law J.D. magna cum laude Seton Hall University School of Law J.D. 2008 Order of the Coif
- In Progress

Bar Admissions

New Jersey
Admitted: 2008
New York
Admitted: 2010

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