Atty. Mark E. Stallion

Atty. Mark E. Stallion

Mark E. Stallion is a lawyer practicing technology, manufacturing & transportation, technology, aviation and 7 other areas of law.

St. Louis St. Louis 29 Years Experience 29 year
Call (314) 408-3130

Profile Summary

About Mark E. Stallion at a glance

Mark E. Stallion is a Partner, Technology, Manufacturing & Transportation based in St. Louis, Missouri, practicing at Greensfelder, Hemker & Gale, P.C.. They have 29+ years of legal experience, licensed to practice since 1997. Their practice focuses on patent, trademark, copyright, ip, and trade secrets. Admitted to practice in Missouri U.S. Patent and Trademark Office (1997). Educated at Saint Louis University School of Law (J.D., 1997) and Georgia Institute of Technology (B.S.E.E., 1985). Serves clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark E. Stallion is a lawyer practicing technology, manufacturing & transportation, technology, aviation and 7 other areas of law
  • Mark received a B.S.E.E. degree from Georgia Institute of Technology in 1985, and has been licensed for 29 years
  • Mark practices at Greensfelder, Hemker & Gale, P.C. in St. Louis, MO

Practice Areas Explained

Mark E. Stallion's Areas of Practice

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

Patent Law

Mark E. Stallion is one of 18,874 patent attorneys indexed nationally. Browse patent attorneys in Missouri →

Trademark Law

Mark E. Stallion is one of 20,983 trademark attorneys indexed nationally. Browse trademark attorneys in Missouri →

Copyright Law

Mark E. Stallion is one of 15,929 copyright attorneys indexed nationally. Browse copyright attorneys in Missouri →

Intellectual Property

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

Mark E. Stallion is one of 94,505 ip attorneys indexed nationally. Browse ip attorneys in Missouri →

Trade Secrets

Mark E. Stallion is one of 6,133 trade secrets attorneys indexed nationally. Browse trade secrets attorneys in Missouri →

Jurisdictional Context

Why local counsel matters in Missouri

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

Looking for additional Missouri attorneys? Browse all attorneys in St. Louis or all attorneys in Missouri.

Frequently Asked

Common questions about Mark E. Stallion

Where is Mark E. Stallion's law office located?
Mark E. Stallion's law practice is located in St. Louis, Missouri. The firm is Greensfelder, Hemker & Gale, P.C.. You can contact the office directly through this profile page.
What practice areas does Mark E. Stallion handle?
Mark E. Stallion focuses on patent, trademark, copyright, ip, trade secrets. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Mark E. Stallion practiced law?
Mark E. Stallion has 29+ years of legal experience and has been licensed since 1997.
Where did Mark E. Stallion go to law school?
Mark E. Stallion earned their education at (J.D., 1997); (B.S.E.E., 1985).
How can I contact Mark E. Stallion for a consultation?
You can contact Mark E. Stallion 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.
Saint Louis University School of Law
- 1997
B.S.E.E.
Georgia Institute of Technology
- 1985

Bar Admissions

Missouri U.S. Patent and Trademark Office
Admitted: 1997

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