Atty. Thomas Mark Dunham

Atty. Thomas Mark Dunham

Mr. Thomas Mark Dunham is a lawyer practicing antitrust / trade law, patent infringement, litigation and 1 other area of law.

Washington Washington 31 yrs experience 31 year
Call (443) 909-4791 Book Appointment

Antitrust & Trade Law & More Attorney · Serving Washington, DC · 31+ Years Experience

Profile Summary

About Thomas Mark Dunham at a Glance

Thomas Mark Dunham is a Partner based in Washington, District of Columbia, practicing at Winston And Strawn Llp. They have 31+ years of legal experience, licensed to practice since 1995. Their practice focuses on patent and litigation. Admitted to practice in District of Columbia (1995), Colorado U.S. Court of Appeals, Federal Circuit and U.S. District Court, Eastern District of Texas U (2008), and Alaska (2018). Educated at Villanova University School of Law (J.D., 1995) and Binghamton University (B.S. Physics, 1987). Active member of American Bar Association American Intellectual Property Law Association. Serves clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Thomas Mark Dunham

  • Mr. Thomas Mark Dunham is a lawyer practicing antitrust / trade law, patent infringement, litigation and 1 other area of law
  • Thomas received a B.S. degree from Binghamton University in 1987, and has been licensed for 31 years
  • Thomas practices at Winston & Strawn LLP in Washington, DC

Practice Areas Explained

Thomas Mark Dunham's Areas of Legal Practice

Each practice area below reflects the types of cases Thomas Mark Dunham handles, with a practical overview of what that area of law involves and how it may apply to your situation in Washington.

Patent Law in Washington

Thomas Mark Dunham is one of 20,632 patent attorneys indexed nationally. Browse patent attorneys in District of Columbia →

Civil Litigation in Washington

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

Thomas Mark Dunham is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in District of Columbia →

Jurisdictional Context

Why Local Counsel Matters in Washington

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 venue, 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.

Washington Courts and Legal Process

Choosing a Washington-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

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

Frequently Asked

Common Questions About Thomas Mark Dunham

Where is Thomas Mark Dunham's law office located?
Thomas Mark Dunham's law practice is located in Washington, District of Columbia. The firm is Winston And Strawn Llp. You can contact the office directly through this profile page.
What practice areas does Thomas Mark Dunham handle?
Thomas Mark Dunham focuses on patent, litigation. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Thomas Mark Dunham practiced law?
Thomas Mark Dunham has 31+ years of legal experience and has been licensed since 1995.
Where did Thomas Mark Dunham go to law school?
Thomas Mark Dunham earned their education at (J.D., 1995); (B.S. Physics, 1987).
How can I contact Thomas Mark Dunham for a consultation?
You can contact Thomas Mark Dunham 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.

Professional Profile

Why Clients in Washington Choose Thomas Mark Dunham

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Thomas Mark Dunham's practice in the field of patent and litigation.

Decade-Tested Legal Experience

Thomas Mark Dunham brings 31+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Multi-State Bar Admission

Licensed in District of Columbia, Colorado U.S. Court of Appeals, Federal Circuit and U.S. District Court, Eastern District of Texas U, and Alaska, Thomas Mark Dunham can represent clients in cases that span state lines or require counsel in multiple jurisdictions.

Broad Practice Area Coverage

Covering patent and litigation, Thomas Mark Dunham can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in Washington

A Washington-based practice means Thomas Mark Dunham attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Search Reference

How People Find Thomas Mark Dunham Online

Prospective clients searching for legal help in Washington commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Thomas Mark Dunham.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Thomas Mark Dunham directly.

Thomas Mark Dunham's Practice Areas & Specializations

Education & Law School Background

J.D.
Villanova University School of Law
- 1995
B.S. Physics
Binghamton University
- 1987

Bar Admissions & Licensed Jurisdictions

District of Columbia
Admitted: 1995
Colorado U.S. Court of Appeals, Federal Circuit and U.S. District Court, Eastern District of Texas U
Admitted: 2008
Alaska
Admitted: 2018

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