Trademark Attorney / Law Firm

Mary Margaret L. O'Donnell – Trademark Portfolio

With a filing history spanning 36 years (1906–2026), Mary Margaret L. O'Donnell has represented clients in 2,477 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 1,082 trademarks have achieved registered status, while 325 remain pending. Areas of expertise include Class 9 (Computers & Electronics) and Class 35 (Advertising & Business), among 20 Nice Classification classes represented.

2,477 Total Trademarks
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