Atty. Stephen J. Kastenberg

Atty. Stephen J. Kastenberg

Stephen J. Kastenberg is a lawyer practicing business, corporate & incorporation, financial markets and services and 16 other areas of law.

Philadelphia Philadelphia 33 yrs experience 33 year
Call (484) 496-1012 Book Appointment

Profile Summary

About Stephen J. Kastenberg at a glance

Stephen J. Kastenberg is a Partner based in Philadelphia, Pennsylvania, practicing at Ballard Spahr LLP. They have 33+ years of legal experience, licensed to practice since 1993. Their practice focuses on formation, patent, employment, business, and ip. Admitted to practice in New Jersey (1993) and Pennsylvania U.S. Court of Appeals, Third Circuit U.S. District Court, Eastern District of Pennsylva (1993). Educated at Harvard Law School (J.D., 1992) and Princeton University (A.B., 1988). Recognitions include AV Preeminent. Serands clients in Philadelphia, PA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Stephen J. Kastenberg is a lawyer practicing business, corporate & incorporation, financial markets and services and 16 other areas of law
  • Stephen received a A.B. degree from Princeton University in 1988, and has been licensed for 33 years
  • Stephen practices at Ballard Spahr LLP in Philadelphia, PA

Practice Areas Explained

Stephen J. Kastenberg's Areas of Practice

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

Business Formation

Stephen J. Kastenberg is one of 35,584 formation attorneys indexed nationally. Browse formation attorneys in Pennsylvania →

Patent Law

Stephen J. Kastenberg is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in Pennsylvania →

Employment Law

Employment lawyers represent workers in wrongful termination, discrimination, harassment, wage & hour disputes, and severance negotiations.

Stephen J. Kastenberg is one of 169,120 employment attorneys indexed nationally. Browse employment attorneys in Pennsylvania →

Business & Corporate Law

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

Stephen J. Kastenberg is one of 501,317 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.

Stephen J. Kastenberg 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 Stephen J. Kastenberg

Where is Stephen J. Kastenberg's law office located?
Stephen J. Kastenberg's law practice is located in Philadelphia, Pennsylvania. The firm is Ballard Spahr LLP. You can contact the office directly through this profile page.
What practice areas does Stephen J. Kastenberg handle?
Stephen J. Kastenberg focuses on formation, patent, employment, business, ip. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
How long has Stephen J. Kastenberg practiced law?
Stephen J. Kastenberg has 33+ years of legal experience and has been licensed since 1993.
Where did Stephen J. Kastenberg go to law school?
Stephen J. Kastenberg earned their education at (J.D., 1992); (A.B., 1988).
How can I contact Stephen J. Kastenberg for a consultation?
You can contact Stephen J. Kastenberg 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.
What awards or recognition has Stephen J. Kastenberg received?
Stephen J. Kastenberg's notable recognition includes: AV Preeminent.

Education

J.D.
Harvard Law School
- 1992
A.B.
Princeton University
- 1988

Awards

AV Preeminent

Bar Admissions

New Jersey
Admitted: 1993
Pennsylvania U.S. Court of Appeals, Third Circuit U.S. District Court, Eastern District of Pennsylva
Admitted: 1993

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