Trademark Attorney / Law Firm
Stephen Y. Liu – Trademark Portfolio
With a filing history spanning 12 years (2015–2026), Stephen Y. Liu has represented clients in 108 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 57 trademarks have achieved registered status, while 20 remain pending. Areas of expertise include Class 42 (Computer & Scientific) and Class 35 (Advertising & Business), among 20 Nice Classification classes represented.
Showing of trademarks Trademarks
Practice Areas by Trademark Class
Stephen Y. Liu's trademark practice covers 20 Nice Classification classes, representing the range of industries and goods/services handled in their USPTO filings.
Scientific and technological services; industrial analysis and research services
Advertising; business management; business administration; office functions
Bleaching preparations and other substances for laundry use; cleaning, polishing, scouring
Pharmaceutical and veterinary preparations; sanitary preparations for medical purposes
Education; providing of training; entertainment; sporting and cultural activities
Insurance; financial affairs; monetary affairs; real estate affairs
Scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments
Medical services; veterinary services; hygienic and beauty care for human beings or animals
Frequently Asked Questions
How many trademark applications has Stephen Y. Liu filed?
Stephen Y. Liu has filed 108 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 57 registered, 20 pending, 29 abandoned, 2 cancelled.
What trademark classes does Stephen Y. Liu specialize in?
Stephen Y. Liu has filed trademarks across 20 Nice Classification classes. The most common practice areas include Class 42 (Computer & Scientific), Class 35 (Advertising & Business), Class 3 (Cosmetics & Cleaning), Class 5 (Pharmaceuticals), Class 41 (Education & Entertainment). Class 42 covers scientific and technological services; industrial analysis and research services.
How long has Stephen Y. Liu been filing trademarks?
Stephen Y. Liu's trademark filing history with the USPTO spans from 2015 to 2026, covering 11 years of trademark practice. During this period, Stephen Y. Liu has handled 108 trademark applications.
What is Stephen Y. Liu's trademark registration success rate?
Stephen Y. Liu has a 65% trademark registration rate, with 57 out of 88 resolved applications resulting in successful registration. Currently, 20 applications are pending review.