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Trademark Attorney / Law Firm

Phillip E. Walker – Trademark Portfolio

With a filing history spanning 39 years (1963–2026), Phillip E. Walker has represented clients in 862 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 431 trademarks have achieved registered status, while 88 remain pending. Areas of expertise include Class 11 (Environmental Control) and Class 37 (Building & Construction), among 20 Nice Classification classes represented.

862 Total Trademarks
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All (862) Registered (431) Pending (88) Abandoned (212) Cancelled (131)
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 1999 1998 1997 1996 1995 1994 1993 1992 1990 1989 1988 1985 1963
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