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Trademark Attorney / Law Firm

Charles L. Riddle – Trademark Portfolio

With a filing history spanning 28 years (1937–2026), Charles L. Riddle has represented clients in 1,450 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 641 trademarks have achieved registered status, while 241 remain pending. Areas of expertise include Class 41 (Education & Entertainment) and Class 25 (Clothing), among 20 Nice Classification classes represented.

1,450 Total Trademarks
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All (1,450) Registered (641) Pending (241) Abandoned (461) Cancelled (106)
All Years 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2000 1999 1997 1991 1989 1937
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