Atty. Janet Susan Hendrickson

Atty. Janet Susan Hendrickson

Janet Susan Hendrickson is a lawyer practicing chemical patent prosecution, pharmaceutical patent prosecution, business and corporations - non-profit corporations and 3 other areas of law. Janet received a B.A. degree from Cornell College in 1986, and has been licensed for 24 years.

St. Louis St. Louis 24 yrs experience 24 year
Call (314) 860-1556 Book Appointment

Profile Summary

About Janet Susan Hendrickson at a glance

Janet Susan Hendrickson is an Associate based in St. Louis, Missouri, practicing at Senniger Powers LLP. They have 24+ years of legal experience, licensed to practice since 2002. Their practice focuses on patent, business, ip, and tax. Admitted to practice in Missouri registered to practice before U.S. Patent and Trademark Office (2002). Educated at University of Toledo (J.D., 2002) and Cornell College (B.A., 1986). Active member of Bar Association of Metropolitan St and Louis The Missouri Bar American Bar Association. Serands clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Janet Susan Hendrickson is a lawyer practicing chemical patent prosecution, pharmaceutical patent prosecution, business and corporations - non-profit corporations and 3 other areas of law
  • Janet received a B.A. degree from Cornell College in 1986, and has been licensed for 24 years
  • Janet practices at Senniger Powers LLP in St. Louis, MO

Practice Areas Explained

Janet Susan Hendrickson's Areas of Practice

Each practice area below reflects the types of cases Janet Susan Hendrickson handles, with a brief overview of what that area of law covers.

Patent Law

Janet Susan Hendrickson is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in Missouri →

Business & Corporate Law

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

Janet Susan Hendrickson is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Missouri →

Intellectual Property

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

Janet Susan Hendrickson is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Missouri →

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

Janet Susan Hendrickson is one of 85,302 tax attorneys indexed nationally. Browse tax 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 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 St. Louis or all attorneys in Missouri.

Frequently Asked

Common questions about Janet Susan Hendrickson

Where is Janet Susan Hendrickson's law office located?
Janet Susan Hendrickson's law practice is located in St. Louis, Missouri. The firm is Senniger Powers LLP. You can contact the office directly through this profile page.
What practice areas does Janet Susan Hendrickson handle?
Janet Susan Hendrickson focuses on patent, business, ip, tax. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Janet Susan Hendrickson practiced law?
Janet Susan Hendrickson has 24+ years of legal experience and has been licensed since 2002.
Where did Janet Susan Hendrickson go to law school?
Janet Susan Hendrickson earned their education at (J.D., 2002); (B.A., 1986).
How can I contact Janet Susan Hendrickson for a consultation?
You can contact Janet Susan Hendrickson 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 Toledo
- 2002
B.A.
Cornell College
- 1986

Bar Admissions

Missouri registered to practice before U.S. Patent and Trademark Office
Admitted: 2002

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