Atty. Gregory Steven DeLassus

Atty. Gregory Steven DeLassus

Gregory Steven DeLassus is a lawyer practicing health care, patent infringement, patent application and 3 other areas of law. Gregory received a B.A. degree from Truman State University in 1999, and has been licensed for 14 years.

Clayton Clayton 14 yrs experience 14 year
Call (314) 282-4660 Book Appointment

Profile Summary

About Gregory Steven DeLassus at a glance

Gregory Steven DeLassus is an Associate Attorney based in Clayton, Missouri. They have 14+ years of legal experience, licensed to practice since 2012. Their practice focuses on patent, trademark, m&a, and health care. Admitted to practice in Missouri (2012) and California (2023). Educated at Saint Louis University College of Law (J.D., 2012) and Truman State University (B.A. Biology, 1999). Serands clients in Clayton, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Gregory Steven DeLassus is a lawyer practicing health care, patent infringement, patent application and 3 other areas of law
  • Gregory received a B.A. degree from Truman State University in 1999, and has been licensed for 14 years
  • Gregory practices in Clayton, MO

Practice Areas Explained

Gregory Steven DeLassus's Areas of Practice

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

Patent Law

Gregory Steven DeLassus is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in Missouri →

Trademark Law

Gregory Steven DeLassus is one of 23,222 trademark attorneys indexed nationally. Browse trademark attorneys in Missouri →

Mergers & Acquisitions

Gregory Steven DeLassus is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys in Missouri →

Health Care Law

Health care attorneys for HIPAA, Medicare, Medicaid, regulatory compliance, and medical licensing matters.

Gregory Steven DeLassus is one of 66,735 health care attorneys indexed nationally. Browse health care 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 Clayton 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 andnue, 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 Clayton or all attorneys in Missouri.

Frequently Asked

Common questions about Gregory Steven DeLassus

Where is Gregory Steven DeLassus's law office located?
Gregory Steven DeLassus's law practice is located in Clayton, Missouri. You can contact the office directly through this profile page.
What practice areas does Gregory Steven DeLassus handle?
Gregory Steven DeLassus focuses on patent, trademark, m&a, health care. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Gregory Steven DeLassus practiced law?
Gregory Steven DeLassus has 14+ years of legal experience and has been licensed since 2012.
Where did Gregory Steven DeLassus go to law school?
Gregory Steven DeLassus earned their education at (J.D., 2012); (B.A. Biology, 1999).
How can I contact Gregory Steven DeLassus for a consultation?
You can contact Gregory Steven DeLassus 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 College of Law
- 2012
B.A. Biology
Truman State University
- 1999

Bar Admissions

Missouri
Admitted: 2012
California
Admitted: 2023

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