Atty. Louis M. Troilo

Atty. Louis M. Troilo

Mr. Louis M.

Haverford Haverford 28 yrs experience 28 year
Call (484) 573-2871 Book Appointment

Profile Summary

About Louis M. Troilo at a glance

Louis M. Troilo is a patent, criminal defense, and ip attorney based in Haverford, Pennsylvania. They have 28+ years of legal experience, licensed to practice since 1998. Admitted to practice in Pennsylvania (1998) and District of Columbia U.S. District Court, Pennsylvania U.S. Court of Appeals, Federal Circuit U.S. P (1999). Educated at Catholic University of America, Columbus School of Law J.D. (—) and Pennsylvania State University B.S. Ceramic Science and Engineering Pennsylvania State University B.S. Material Science Pennsylvania State University M.S. Ceramic Science and Engineering Penns (—). Serands clients in Haverford, PA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Louis M. Troilo is a lawyer practicing patents, patent prosecution, patent portfolio management and 5 other areas of law
  • Louis received a B.S. degree from Pennsylvania State University, and has been licensed for 28 years
  • Louis practices in Haverford, PA

Practice Areas Explained

Louis M. Troilo's Areas of Practice

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

Patent Law

Louis M. Troilo is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in Pennsylvania →

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Louis M. Troilo is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Pennsylvania →

Intellectual Property

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

Louis M. Troilo 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 Haverford 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 Haverford or all attorneys in Pennsylvania.

Frequently Asked

Common questions about Louis M. Troilo

Where is Louis M. Troilo's law office located?
Louis M. Troilo's law practice is located in Haverford, Pennsylvania. You can contact the office directly through this profile page.
What practice areas does Louis M. Troilo handle?
Louis M. Troilo focuses on patent, criminal defense, ip. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
How long has Louis M. Troilo practiced law?
Louis M. Troilo has 28+ years of legal experience and has been licensed since 1998.
Where did Louis M. Troilo go to law school?
Louis M. Troilo earned their education at (—); (—).
How can I contact Louis M. Troilo for a consultation?
You can contact Louis M. Troilo 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

Catholic University of America, Columbus School of Law J.D.
- In Progress
Pennsylvania State University B.S. Ceramic Science and Engineering Pennsylvania State University B.S. Material Science Pennsylvania State University M.S. Ceramic Science and Engineering Penns
- In Progress

Bar Admissions

Pennsylvania
Admitted: 1998
District of Columbia U.S. District Court, Pennsylvania U.S. Court of Appeals, Federal Circuit U.S. P
Admitted: 1999

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