Trademark Attorney / Law Firm
Dutro E. Campbell – Trademark Portfolio
Dutro E. Campbell has 94 trademark filings recorded with the United States Patent and Trademark Office (USPTO). Of these, 17 trademarks are successfully registered — a 77% registration rate, with an additional 72 applications currently pending. The strongest areas of practice include Class 35 (Advertising & Business) and Class 42 (Computer & Scientific). Filing activity has been recorded from 2025 through 2026, spanning 2 years.
Showing of trademarks Trademarks
Practice Areas by Trademark Class
Dutro E. Campbell's trademark practice covers 20 Nice Classification classes, representing the range of industries and goods/services handled in their USPTO filings.
Advertising; business management; business administration; office functions
Scientific and technological services; industrial analysis and research services
Scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments
Education; providing of training; entertainment; sporting and cultural activities
Paper and cardboard; printed matter; bookbinding material; photographs; stationery
Bleaching preparations and other substances for laundry use; cleaning, polishing, scouring
Medical services; veterinary services; hygienic and beauty care for human beings or animals
Insurance; financial affairs; monetary affairs; real estate affairs
Frequently Asked Questions
How many trademark applications has Dutro E. Campbell filed?
Dutro E. Campbell has filed 94 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 17 registered, 72 pending, 4 abandoned, 1 cancelled.
What trademark classes does Dutro E. Campbell specialize in?
Dutro E. Campbell has filed trademarks across 20 Nice Classification classes. The most common practice areas include Class 35 (Advertising & Business), Class 42 (Computer & Scientific), Class 9 (Computers & Electronics), Class 41 (Education & Entertainment), Class 10 (Medical Apparatus). Class 35 covers advertising; business management; business administration; office functions.
How long has Dutro E. Campbell been filing trademarks?
Dutro E. Campbell's trademark filing history with the USPTO spans from 2025 to 2026, covering 1 year of trademark practice. During this period, Dutro E. Campbell has handled 94 trademark applications.
What is Dutro E. Campbell's trademark registration success rate?
Dutro E. Campbell has a 77% trademark registration rate, with 17 out of 22 resolved applications resulting in successful registration. Currently, 72 applications are pending review.