Atty. Mark D. Simpson

Atty. Mark D. Simpson

Mark D. Simpson is a lawyer practicing intellectual property litigation, ip due diligence, worldwide ip protection and 6 other areas of law.

Philadelphia Philadelphia 38 Years Experience 38 year
Call (484) 344-1748

Profile Summary

About Mark D. Simpson at a glance

Mark D. Simpson is a Partner based in Philadelphia, Pennsylvania, practicing at Saul Ewing Arnstein & Lehr LLP. They have 38+ years of legal experience, licensed to practice since 1988. Their practice focuses on patent, trademark, copyright, business, and ip. Admitted to practice in Pennsylvania (1988), New Jersey (1988), U.S. District Court, District of New Jersey (1988), and U.S. Court of Appeals, Federal Circuit (1989). Educated at University of Baltimore School of Law (J.D., 1988) and Temple University (A.E.T. Thomas, 1981). Serves clients in Philadelphia, PA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark D. Simpson is a lawyer practicing intellectual property litigation, ip due diligence, worldwide ip protection and 6 other areas of law
  • Mark received a degree from Temple University in 1981, and has been licensed for 38 years
  • Mark practices at Saul Ewing Arnstein & Lehr LLP in Philadelphia, PA

Practice Areas Explained

Mark D. Simpson's Areas of Practice

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

Patent Law

Mark D. Simpson is one of 18,874 patent attorneys indexed nationally. Browse patent attorneys in Pennsylvania →

Trademark Law

Mark D. Simpson is one of 20,983 trademark attorneys indexed nationally. Browse trademark attorneys in Pennsylvania →

Copyright Law

Mark D. Simpson is one of 15,929 copyright attorneys indexed nationally. Browse copyright attorneys in Pennsylvania →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Mark D. Simpson is one of 452,854 business attorneys indexed nationally. Browse business attorneys in Pennsylvania →

Intellectual Property

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

Mark D. Simpson is one of 94,505 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 venue, 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 Mark D. Simpson

Where is Mark D. Simpson's law office located?
Mark D. Simpson's law practice is located in Philadelphia, Pennsylvania. The firm is Saul Ewing Arnstein & Lehr LLP. You can contact the office directly through this profile page.
What practice areas does Mark D. Simpson handle?
Mark D. Simpson focuses on patent, trademark, copyright, business, ip. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
How long has Mark D. Simpson practiced law?
Mark D. Simpson has 38+ years of legal experience and has been licensed since 1988.
Where did Mark D. Simpson go to law school?
Mark D. Simpson earned their education at (J.D., 1988); (A.E.T. Thomas, 1981).
How can I contact Mark D. Simpson for a consultation?
You can contact Mark D. Simpson 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.
University of Baltimore School of Law
- 1988
A.E.T. Thomas
Temple University
- 1981

Bar Admissions

Pennsylvania
Admitted: 1988
New Jersey
Admitted: 1988
U.S. District Court, District of New Jersey
Admitted: 1988
U.S. Court of Appeals, Federal Circuit
Admitted: 1989
U.S. District Court, Eastern District of Pennsylvania U.S. Court of Appeals, Third Circuit U.S. Supr
Admitted: 1990

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