TrademarkDir

Trademark Attorney / Law Firm

Dennis S. Prahl – Trademark Portfolio

With a filing history spanning 60 years (1938–2026), Dennis S. Prahl has represented clients in 3,625 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 1,570 trademarks have achieved registered status, while 419 remain pending. Areas of expertise include Class 9 (Computers & Electronics) and Class 3 (Cosmetics & Cleaning), among 20 Nice Classification classes represented.

3,625 Total Trademarks
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All (3,625) Registered (1,570) Pending (419) Abandoned (764) Cancelled (739)
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 1978 1977 1976 1975 1974 1966 1965 1964 1963 1962 1957 1955 1953 1949 1938
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Practice Areas by Trademark Class

Dennis S. Prahl's trademark practice covers 20 Nice Classification classes, representing the range of industries and goods/services handled in their USPTO filings.

9
Computers & Electronics (878 filings)

Scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments

3
Cosmetics & Cleaning (545 filings)

Bleaching preparations and other substances for laundry use; cleaning, polishing, scouring

35
Advertising & Business (543 filings)

Advertising; business management; business administration; office functions

42
Computer & Scientific (463 filings)

Scientific and technological services; industrial analysis and research services

39
Transportation & Storage (326 filings)

Transport; packaging and storage of goods; travel arrangement

2
Paints (294 filings)

Paints, varnishes, lacquers; preservatives against rust and against deterioration of wood

25
Clothing (282 filings)

Clothing, footwear, headgear

41
Education & Entertainment (254 filings)

Education; providing of training; entertainment; sporting and cultural activities

37
Building & Construction (224 filings)

Building construction; repair; installation services

7
Machinery (205 filings)

Machines and machine tools; motors and engines; machine coupling and transmission components

Frequently Asked Questions

How many trademark applications has Dennis S. Prahl filed?

Dennis S. Prahl has filed 3,625 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 1,570 registered, 419 pending, 764 abandoned, 739 cancelled.

What trademark classes does Dennis S. Prahl specialize in?

Dennis S. Prahl has filed trademarks across 20 Nice Classification classes. The most common practice areas include Class 9 (Computers & Electronics), Class 3 (Cosmetics & Cleaning), Class 35 (Advertising & Business), Class 42 (Computer & Scientific), Class 39 (Transportation & Storage). Class 9 covers scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments.

How long has Dennis S. Prahl been filing trademarks?

Dennis S. Prahl's trademark filing history with the USPTO spans from 1938 to 2026, covering 88 years of trademark practice. During this period, Dennis S. Prahl has handled 3,625 trademark applications.

What is Dennis S. Prahl's trademark registration success rate?

Dennis S. Prahl has a 51% trademark registration rate, with 1,570 out of 3,073 resolved applications resulting in successful registration. Currently, 419 applications are pending review.