What areas of law does John T Callahan practice?

John T Callahan focuses on IP, Litigation, Patent, and Real Estate.

Where is John T Callahan located?

John T Callahan primarily serves clients in Washington, District of Columbia, with an office at 2100 Pennsylvania Avenue, N.W., Suite 800.

How experienced is John T Callahan?

John T Callahan has 36 years of legal practice, having been licensed since 1990.

Is John T Callahan a verified attorney?

John T Callahan's profile is listed but has not yet been claimed by the attorney. Verification status is pending.

How can I schedule a consultation with John T Callahan?

You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 771-218-3541.

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John T Callahan

MemberatSughrue Mion, PLLC

Washington, DC

Practicing ip in Washington since 1990.

36+: Years practicing
1: Bar admission

Practices in

IP Litigation Patent Real Estate

Are you John T Callahan?

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Quick answer

John T Callahan is a member based in Washington, DC. The practice focuses on IP, Litigation, and Patent. John has over 36 years of legal experience. Currently practicing at Sughrue Mion, PLLC.

Based in: Washington, DC
Experience: over 36 years
Known for: IP · Litigation · Patent

Handles IP, Litigation, and Patent matters from Washington, DC.
Over 36 years of practice as a licensed attorney.

Areas of practice

Practice focus

John T Callahan represents clients in Washington, District of Columbia across the following areas of law. Each area links to other verified attorneys with the same focus.

Biography

About John T Callahan

John T Callahan is a lawyer practicing intellectual property law, patent infringement, litigation. John received a B.Ch.E. degree from Catholic University in 1985, and has been licensed for 36 years. John practices at Sughrue Mion, PLLC in Washington, DC.

Credentials

Education

University of Baltimore
J.D. · 1990
Catholic University
B.Ch.E. · 1985

Jurisdictions

Bar admissions

District of Columbia
1990 · ACTIVE

Affiliations

Professional memberships

District of Columbia Bar
membership

Locations

Office locations

Main office

Sughrue Mion, PLLC

2100 Pennsylvania Avenue, N.W., Suite 800

Washington, DC 20037-3213

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Client reviews

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Frequently asked

Common questions

What areas of law does John T Callahan practice?
John T Callahan focuses on IP, Litigation, Patent, and Real Estate.
Where is John T Callahan located?
John T Callahan primarily serves clients in Washington, District of Columbia, with an office at 2100 Pennsylvania Avenue, N.W., Suite 800.
How experienced is John T Callahan?
John T Callahan has 36 years of legal practice, having been licensed since 1990.
Is John T Callahan a verified attorney?
John T Callahan's profile is listed but has not yet been claimed by the attorney. Verification status is pending.
How can I schedule a consultation with John T Callahan?
You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 771-218-3541.