Trademark Attorney / Law Firm
Dutro E. Campbell – Trademark Portfolio
Dutro E. Campbell has 81 trademark filings recorded with the United States Patent and Trademark Office (USPTO). Of these, 13 trademarks are successfully registered — a 76% registration rate, with an additional 64 applications currently pending. The strongest areas of practice include Class 35 (Advertising & Business) and Class 41 (Education & Entertainment). 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
Education; providing of training; entertainment; sporting and cultural activities
Scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments
Scientific and technological services; industrial analysis and research services
Paper and cardboard; printed matter; bookbinding material; photographs; stationery
Medical services; veterinary services; hygienic and beauty care for human beings or animals
Bleaching preparations and other substances for laundry use; cleaning, polishing, scouring
Pharmaceutical and veterinary preparations; sanitary preparations for medical purposes
Frequently Asked Questions
How many trademark applications has Dutro E. Campbell filed?
Dutro E. Campbell has filed 81 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 13 registered, 64 pending, 3 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 41 (Education & Entertainment), Class 9 (Computers & Electronics), Class 42 (Computer & Scientific), 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 81 trademark applications.
What is Dutro E. Campbell's trademark registration success rate?
Dutro E. Campbell has a 76% trademark registration rate, with 13 out of 17 resolved applications resulting in successful registration. Currently, 64 applications are pending review.