Trademark Attorney / Law Firm
Thomas W. Leffert – Trademark Portfolio
Thomas W. Leffert specializes in Class 1 (Chemicals) trademark filings before the United States Patent and Trademark Office (USPTO), with 13 of 20 total filings concentrated in this category. The practice also covers Class 5 (Pharmaceuticals) along with 5 other Nice Classification classes. Filing activity spans from 1988 to 2025. Currently, 14 trademarks are registered.
Showing of trademarks Trademarks
Practice Areas by Trademark Class
Thomas W. Leffert's trademark practice covers 5 Nice Classification classes, representing the range of industries and goods/services handled in their USPTO filings.
Chemical products for industry, science, photography, agriculture, horticulture and forestry
Pharmaceutical and veterinary preparations; sanitary preparations for medical purposes
Scientific and technological services; industrial analysis and research services
Medical services; veterinary services; hygienic and beauty care for human beings or animals
Paper and cardboard; printed matter; bookbinding material; photographs; stationery
Frequently Asked Questions
How many trademark applications has Thomas W. Leffert filed?
Thomas W. Leffert has filed 20 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 14 registered, 1 abandoned, 5 cancelled.
What trademark classes does Thomas W. Leffert specialize in?
Thomas W. Leffert has filed trademarks across 5 Nice Classification classes. The most common practice areas include Class 1 (Chemicals), Class 5 (Pharmaceuticals), Class 42 (Computer & Scientific), Class 44 (Medical Services), Class 16 (Paper Goods). Class 1 covers chemical products for industry, science, photography, agriculture, horticulture and forestry.
How long has Thomas W. Leffert been filing trademarks?
Thomas W. Leffert's trademark filing history with the USPTO spans from 1988 to 2025, covering 37 years of trademark practice. During this period, Thomas W. Leffert has handled 20 trademark applications.
What is Thomas W. Leffert's trademark registration success rate?
Thomas W. Leffert has a 70% trademark registration rate, with 14 out of 20 resolved applications resulting in successful registration. Currently, 0 applications are pending review.