James McAllister is a Chartered Trade Mark Attorney who helps clients realize the strategic value of their brands through commercially driven advice underpinned by solid legal reasoning. He actively seeks to understand a client’s business objectives to inform practical solutions, identify brand opportunities and devise focused trade mark filing programs.

James’s practice revolves around clearing brands for use and registration; registering, enforcing and defending brands; dispute resolution; and global portfolio management.

Over his many years in practice, James has advised a wide and diverse range of brand owners – from fire alarm manufacturers to food and drink outlets, from financial advisers to fashion designers. He likes nothing better than seeing a brand he has helped develop performing well in the marketplace.

James holds a professional certificate in trade mark practice as well as an intellectual property litigation certificate.

Away from day-to-day practice, James peer reviews and edits articles for The Trademark Reporter journal as a member of INTA’s Trademark Reporter Committee. In addition, James served as a technical consultant for the IP and licensing sections of “How to Start Your Own Business…And Make it Work,” a Dorling Kindersley book published in February 2021.


James started his career with one of the U.K.’s leading patent and trade mark law firms before spending seven years in the well-regarded Trade Marks and Brands department of a European law firm, where he dealt with many contentious matters and secured victories in adversarial proceedings before the EUIPO that were strategically important in wider commercial disputes. Prior to joining Armstrong Teasdale, James served as an associate at a boutique patent and trade mark firm in London.


  • Lancaster University  (LL.M., 2000)
    • International Law with International Relations
  • Lancaster University  (B.A., 1999)
    • Politics with International Relations


  • U.K. Register of Trade Mark Attorneys
  • United Kingdom

Professional Activities

  • Ordinary Member of Chartered Institute of Trade Mark Attorneys
  • International Trademark Association (INTA) (Trademark Reporter Committee, 2020-2023)
Contact Us
  • Worldwide
  • Boston, MA
  • Chicago, IL
  • Denver, CO
  • Dublin, Ireland
  • Edwardsville, IL
  • Jefferson City, MO
  • Kansas City, MO
  • Las Vegas, NV
  • London, England
  • Miami, FL
  • New York, NY
  • Orange County, CA
  • Philadelphia, PA
  • Princeton, NJ
  • Salt Lake City, UT
  • St. Louis, MO
  • Washington, D.C.
  • Wilmington, DE
abstract image of world map
Boston, MA
800 Boylston St.
30th Floor
Boston, MA 02199
Google Maps
Boston, Massachusetts
Chicago, IL
100 North Riverside Plaza
Suite 1500
Chicago, IL 60606-1520
Google Maps
Chicago, Illinois
Denver, CO
4643 S. Ulster St.
Suite 800
Denver, CO 80237
Google Maps
Denver, Colorado
Dublin, Ireland
Fitzwilliam Hall, Fitzwilliam Place
Dublin 2, Ireland
Google Maps
Edwardsville, IL
115 N. Second St.
Edwardsville, IL 62025
Google Maps
Edwardsville, Illinois
Jefferson City, MO
101 E. High St.
First Floor
Jefferson City, MO 65101
Google Maps
Jefferson City, Missouri
Kansas City, MO
2345 Grand Blvd.
Suite 1500
Kansas City, MO 64108
Google Maps
Kansas City, Missouri
Las Vegas, NV
7160 Rafael Rivera Way
Suite 320
Las Vegas, NV 89113
Google Maps
Las Vegas, Nevada
London, England
Royal College of Surgeons of England
38-43 Lincoln’s Inn Fields
London, WC2A 3PE
Google Maps
Miami, FL
355 Alhambra Circle
Suite 1200
Coral Gables, FL 33134
Google Maps
Photo of Miami, Florida
New York, NY
7 Times Square, 44th Floor
New York, NY 10036
Google Maps
New York City skyline
Orange County, CA
19800 MacArthur Boulevard
Suite 300
Irvine, CA 92612
Google Maps
Philadelphia, PA
2005 Market Street
29th Floor, One Commerce Square
Philadelphia, PA 19103
Google Maps
Philadelphia, Pennsylvania
Princeton, NJ
100 Overlook Center
Second Floor
Princeton, NJ 08540
Google Maps
Princeton, New Jersey
Salt Lake City, UT
222 South Main St.
Suite 1830
Salt Lake City, UT 84101
Google Maps
Salt Lake City, Utah
St. Louis, MO
7700 Forsyth Blvd.
Suite 1800
St. Louis, MO 63105
Google Maps
St. Louis, Missouri
Washington, D.C.
1717 Pennsylvania Avenue NW
Suite 400
Washington, DC 20006
Google Maps
Photo of Washington, D.C. with the Capitol in the foreground and Washington Monument in the background.
Wilmington, DE
1007 North Market Street
Wilmington, DE 19801
Google Maps
Wilmington, Delaware