Trademark Attorney / Law Firm
Brian W. Chellgren – Trademark Portfolio
With a filing history spanning 40 years (1923–2026), Brian W. Chellgren has represented clients in 511 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 288 trademarks have achieved registered status, while 29 remain pending. Areas of expertise include Class 28 (Toys & Sporting Goods) and Class 9 (Computers & Electronics), among 20 Nice Classification classes represented.
Showing of trademarks Trademarks
Practice Areas by Trademark Class
Brian W. Chellgren's trademark practice covers 20 Nice Classification classes, representing the range of industries and goods/services handled in their USPTO filings.
Games and playthings; gymnastic and sporting articles; decorations for Christmas trees
Scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments
Advertising; business management; business administration; office functions
Education; providing of training; entertainment; sporting and cultural activities
Paper and cardboard; printed matter; bookbinding material; photographs; stationery
Scientific and technological services; industrial analysis and research services
Frequently Asked Questions
How many trademark applications has Brian W. Chellgren filed?
Brian W. Chellgren has filed 511 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 288 registered, 29 pending, 136 abandoned, 58 cancelled.
What trademark classes does Brian W. Chellgren specialize in?
Brian W. Chellgren has filed trademarks across 20 Nice Classification classes. The most common practice areas include Class 28 (Toys & Sporting Goods), Class 9 (Computers & Electronics), Class 35 (Advertising & Business), Class 41 (Education & Entertainment), Class 34 (Smokers Articles). Class 28 covers games and playthings; gymnastic and sporting articles; decorations for christmas trees.
How long has Brian W. Chellgren been filing trademarks?
Brian W. Chellgren's trademark filing history with the USPTO spans from 1923 to 2026, covering 103 years of trademark practice. During this period, Brian W. Chellgren has handled 511 trademark applications.
What is Brian W. Chellgren's trademark registration success rate?
Brian W. Chellgren has a 60% trademark registration rate, with 288 out of 482 resolved applications resulting in successful registration. Currently, 29 applications are pending review.