TrademarkDir

Trademark Attorney / Law Firm

Mark A. Jansen – Trademark Portfolio

With a filing history spanning 38 years (1973–2026), Mark A. Jansen has represented clients in 1,683 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 794 trademarks have achieved registered status, while 440 remain pending. Areas of expertise include Class 9 (Computers & Electronics) and Class 42 (Computer & Scientific), among 20 Nice Classification classes represented.

1,683 Total Trademarks
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All (1,683) Registered (794) Pending (440) Abandoned (266) Cancelled (177)
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