Trademark Attorney / Law Firm
Ya-Fen Chen – Trademark Portfolio
Ya-Fen Chen has 37 trademark filings recorded with the United States Patent and Trademark Office (USPTO). Of these, 24 trademarks are successfully registered — a 75% registration rate, with an additional 5 applications currently pending. The strongest areas of practice include Class 9 (Computers & Electronics) and Class 1 (Chemicals). Filing activity has been recorded from 2015 through 2025, spanning 8 years.
Showing of trademarks Trademarks
Practice Areas by Trademark Class
Ya-Fen Chen's trademark practice covers 10 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
Chemical products for industry, science, photography, agriculture, horticulture and forestry
Education; providing of training; entertainment; sporting and cultural activities
Scientific and technological services; industrial analysis and research services
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying
Legal services; security services for the protection of property and individuals
Bleaching preparations and other substances for laundry use; cleaning, polishing, scouring
Medical services; veterinary services; hygienic and beauty care for human beings or animals
Pharmaceutical and veterinary preparations; sanitary preparations for medical purposes
Frequently Asked Questions
How many trademark applications has Ya-Fen Chen filed?
Ya-Fen Chen has filed 37 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 24 registered, 5 pending, 8 abandoned.
What trademark classes does Ya-Fen Chen specialize in?
Ya-Fen Chen has filed trademarks across 10 Nice Classification classes. The most common practice areas include Class 9 (Computers & Electronics), Class 1 (Chemicals), Class 41 (Education & Entertainment), Class 42 (Computer & Scientific), Class 11 (Environmental Control). Class 9 covers scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments.
How long has Ya-Fen Chen been filing trademarks?
Ya-Fen Chen's trademark filing history with the USPTO spans from 2015 to 2025, covering 10 years of trademark practice. During this period, Ya-Fen Chen has handled 37 trademark applications.
What is Ya-Fen Chen's trademark registration success rate?
Ya-Fen Chen has a 75% trademark registration rate, with 24 out of 32 resolved applications resulting in successful registration. Currently, 5 applications are pending review.