Atty. Mark Harrell Tidman

Atty. Mark Harrell Tidman

Mr. Mark Harrell Tidman is a lawyer practicing ip prosecution and portfolio management, green business and sustainability, global practices and 2 other areas of law.

Washington Washington 37 yrs experience 37 year
Call (443) 909-4915 Book Appointment

Profile Summary

About Mark Harrell Tidman at a glance

Mark Harrell Tidman is a Partner based in Washington, District of Columbia, practicing at Baker And Hostetler Llp. They have 37+ years of legal experience, licensed to practice since 1989. Their practice focuses on business, ip, litigation, and environmental. Admitted to practice in Pennsylvania (1989), U.S. Court of Appeals, Federal Circuit (1990), U.S. Court of Appeals, Fourth Circuit (1993), and U.S. Court of Appeals, District of Columbia Circuit (1994). Educated at American University, Washington College of Law (J.D., 1989) and University of Maryland (B.A., 1986). Recognitions include AV Preeminent. Active member of District of Columbia American Bar Association (Patent, Trademark and Copyright Section) International Trademark Association. Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Mark Harrell Tidman is a lawyer practicing ip prosecution and portfolio management, green business and sustainability, global practices and 2 other areas of law
  • Mark received a B.A. degree from University of Maryland in 1986, and has been licensed for 37 years
  • Mark practices at Baker & Hostetler LLP in Washington, DC

Practice Areas Explained

Mark Harrell Tidman's Areas of Practice

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

Business & Corporate Law

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

Mark Harrell Tidman is one of 501,317 business attorneys indexed nationally. Browse business attorneys in District of Columbia →

Intellectual Property

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

Mark Harrell Tidman is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in District of Columbia →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Mark Harrell Tidman is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in District of Columbia →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

Mark Harrell Tidman is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in District of Columbia →

Jurisdictional Context

Why local counsel matters in District of Columbia

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

Looking for additional District of Columbia attorneys? Browse all attorneys in Washington or all attorneys in District of Columbia.

Frequently Asked

Common questions about Mark Harrell Tidman

Where is Mark Harrell Tidman's law office located?
Mark Harrell Tidman's law practice is located in Washington, District of Columbia. The firm is Baker And Hostetler Llp. You can contact the office directly through this profile page.
What practice areas does Mark Harrell Tidman handle?
Mark Harrell Tidman focuses on business, ip, litigation, environmental. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Mark Harrell Tidman practiced law?
Mark Harrell Tidman has 37+ years of legal experience and has been licensed since 1989.
Where did Mark Harrell Tidman go to law school?
Mark Harrell Tidman earned their education at (J.D., 1989); (B.A., 1986).
How can I contact Mark Harrell Tidman for a consultation?
You can contact Mark Harrell Tidman 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 Mark Harrell Tidman received?
Mark Harrell Tidman's notable recognition includes: AV Preeminent.

Education

J.D.
American University, Washington College of Law
- 1989
B.A.
University of Maryland
- 1986

Awards

AV Preeminent

Bar Admissions

Pennsylvania
Admitted: 1989
U.S. Court of Appeals, Federal Circuit
Admitted: 1990
U.S. Court of Appeals, Fourth Circuit
Admitted: 1993
U.S. Court of Appeals, District of Columbia Circuit
Admitted: 1994
District of Columbia
Admitted: 1995
U.S. Supreme Court
Admitted: 1995
U.S. District Court, District of Columbia and U.S. Court of Federal Claims
Admitted: 1997
U.S. Court of Appeals, Eleventh Circuit
Admitted: 1998

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