Atty. Steve Mendelsohn

Atty. Steve Mendelsohn

Steve Mendelsohn is a lawyer practicing patent prosecution, trademark prosecution, intellectual property and 2 other areas of law. Steve received a B.S. degree from University of Michigan in 1980, and has been licensed for 35 years.

Philadelphia Philadelphia 35 yrs experience 35 year
Call (484) 573-2871 Book Appointment

Profile Summary

About Steve Mendelsohn at a glance

Steve Mendelsohn is a Member based in Philadelphia, Pennsylvania, practicing at Mendelsohn Dunleavy, P.C.. They have 35+ years of legal experience, licensed to practice since 1991. Their practice focuses on patent, trademark, copyright, and ip. Admitted to practice in Pennsylvania (1991) and U.S. District Court, Eastern District of Pennsylvania registered to practice before U.S. Patent and (1991). Educated at University of Pennsylvania (J.D. M.S.E.E., 1991) and University of Michigan (B.S. Physics, 1980). Active member of Philadelphia, Pennsylvania and American Bar Associations American Intellectual Property Law Association Philadelphia Intellectual Property Law Association. Serands clients in Philadelphia, PA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Steve Mendelsohn is a lawyer practicing patent prosecution, trademark prosecution, intellectual property and 2 other areas of law
  • Steve received a B.S. degree from University of Michigan in 1980, and has been licensed for 35 years
  • Steve practices at Mendelsohn Dunleavy, P.C. in Philadelphia, PA

Practice Areas Explained

Steve Mendelsohn's Areas of Practice

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

Patent Law

Steve Mendelsohn is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in Pennsylvania →

Trademark Law

Steve Mendelsohn is one of 23,222 trademark attorneys indexed nationally. Browse trademark attorneys in Pennsylvania →

Copyright Law

Steve Mendelsohn is one of 17,495 copyright attorneys indexed nationally. Browse copyright attorneys in Pennsylvania →

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

Steve Mendelsohn is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Pennsylvania →

Jurisdictional Context

Why local counsel matters in Pennsylvania

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

Looking for additional Pennsylvania attorneys? Browse all attorneys in Philadelphia or all attorneys in Pennsylvania.

Frequently Asked

Common questions about Steve Mendelsohn

Where is Steve Mendelsohn's law office located?
Steve Mendelsohn's law practice is located in Philadelphia, Pennsylvania. The firm is Mendelsohn Dunleavy, P.C.. You can contact the office directly through this profile page.
What practice areas does Steve Mendelsohn handle?
Steve Mendelsohn focuses on patent, trademark, copyright, ip. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
How long has Steve Mendelsohn practiced law?
Steve Mendelsohn has 35+ years of legal experience and has been licensed since 1991.
Where did Steve Mendelsohn go to law school?
Steve Mendelsohn earned their education at (J.D. M.S.E.E., 1991); (B.S. Physics, 1980).
How can I contact Steve Mendelsohn for a consultation?
You can contact Steve Mendelsohn 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

J.D. M.S.E.E.
University of Pennsylvania
- 1991
B.S. Physics
University of Michigan
- 1980

Bar Admissions

Pennsylvania
Admitted: 1991
U.S. District Court, Eastern District of Pennsylvania registered to practice before U.S. Patent and
Admitted: 1991

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