Trademark Attorney / Law Firm
Donald J. Ersler – Trademark Portfolio
With a filing history spanning 32 years (1985–2026), Donald J. Ersler has represented clients in 576 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 178 trademarks have achieved registered status, while 41 remain pending. Areas of expertise include Class 9 (Computers & Electronics) and Class 28 (Toys & Sporting Goods), among 20 Nice Classification classes represented.
Showing of trademarks Trademarks
Practice Areas by Trademark Class
Donald J. Ersler's trademark practice covers 20 Nice Classification classes, representing the range of industries and goods/services handled in their USPTO filings.
Scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments
Games and playthings; gymnastic and sporting articles; decorations for Christmas trees
Advertising; business management; business administration; office functions
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying
Common metals and their alloys; metal building materials; transportable buildings of metal
Machines and machine tools; motors and engines; machine coupling and transmission components
Education; providing of training; entertainment; sporting and cultural activities
Scientific and technological services; industrial analysis and research services
Bleaching preparations and other substances for laundry use; cleaning, polishing, scouring
Frequently Asked Questions
How many trademark applications has Donald J. Ersler filed?
Donald J. Ersler has filed 576 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 178 registered, 41 pending, 208 abandoned, 147 cancelled.
What trademark classes does Donald J. Ersler specialize in?
Donald J. Ersler has filed trademarks across 20 Nice Classification classes. The most common practice areas include Class 9 (Computers & Electronics), Class 28 (Toys & Sporting Goods), Class 35 (Advertising & Business), Class 11 (Environmental Control), Class 6 (Metal Goods). Class 9 covers scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments.
How long has Donald J. Ersler been filing trademarks?
Donald J. Ersler's trademark filing history with the USPTO spans from 1985 to 2026, covering 41 years of trademark practice. During this period, Donald J. Ersler has handled 576 trademark applications.
What is Donald J. Ersler's trademark registration success rate?
Donald J. Ersler has a 33% trademark registration rate, with 178 out of 533 resolved applications resulting in successful registration. Currently, 41 applications are pending review.