TrademarkDir

Trademark Attorney / Law Firm

Dennis S. Prahl – Trademark Portfolio

With a filing history spanning 55 years (1938–2026), Dennis S. Prahl has represented clients in 3,538 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 1,530 trademarks have achieved registered status, while 438 remain pending. Areas of expertise include Class 9 (Computers & Electronics) and Class 3 (Cosmetics & Cleaning), among 20 Nice Classification classes represented.

3,538 Total Trademarks
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All (3,538) Registered (1,530) Pending (438) Abandoned (742) Cancelled (705)
All Years 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1975 1974 1967 1965 1964 1963 1962 1955 1953 1938
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