Trademark Attorney / Law Firm
Vivien Y. Tsang – Trademark Portfolio
With a filing history spanning 19 years (1995–2025), Vivien Y. Tsang has represented clients in 833 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 615 trademarks have achieved registered status, while 52 remain pending. Areas of expertise include Class 9 (Computers & Electronics) and Class 21 (Housewares), among 20 Nice Classification classes represented.
Showing of trademarks Trademarks
Practice Areas by Trademark Class
Vivien Y. Tsang's trademark practice covers 20 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
Games and playthings; gymnastic and sporting articles; decorations for Christmas trees
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying
Paints, varnishes, lacquers; preservatives against rust and against deterioration of wood
Machines and machine tools; motors and engines; machine coupling and transmission components
Paper and cardboard; printed matter; bookbinding material; photographs; stationery
Leather and imitations of leather; animal skins, hides; trunks and travelling bags
Frequently Asked Questions
How many trademark applications has Vivien Y. Tsang filed?
Vivien Y. Tsang has filed 833 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 615 registered, 52 pending, 127 abandoned, 38 cancelled.
What trademark classes does Vivien Y. Tsang specialize in?
Vivien Y. Tsang has filed trademarks across 20 Nice Classification classes. The most common practice areas include Class 9 (Computers & Electronics), Class 21 (Housewares), Class 25 (Clothing), Class 20 (Furniture), Class 28 (Toys & Sporting Goods). Class 9 covers scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments.
How long has Vivien Y. Tsang been filing trademarks?
Vivien Y. Tsang's trademark filing history with the USPTO spans from 1995 to 2025, covering 30 years of trademark practice. During this period, Vivien Y. Tsang has handled 833 trademark applications.
What is Vivien Y. Tsang's trademark registration success rate?
Vivien Y. Tsang has a 79% trademark registration rate, with 615 out of 780 resolved applications resulting in successful registration. Currently, 52 applications are pending review.