Trademark Attorney / Law Firm
Mao-Sen Yieh – Trademark Portfolio
With a filing history spanning 16 years (1986–2025), Mao-Sen Yieh has represented clients in 38 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 15 trademarks have achieved registered status. Areas of expertise include Class 7 (Machinery) and Class 9 (Computers & Electronics), among 6 Nice Classification classes represented.
Showing of trademarks Trademarks
Practice Areas by Trademark Class
Mao-Sen Yieh's trademark practice covers 6 Nice Classification classes, representing the range of industries and goods/services handled in their USPTO filings.
Machines and machine tools; motors and engines; machine coupling and transmission components
Scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments
Common metals and their alloys; metal building materials; transportable buildings of metal
Games and playthings; gymnastic and sporting articles; decorations for Christmas trees
Insurance; financial affairs; monetary affairs; real estate affairs
Frequently Asked Questions
How many trademark applications has Mao-Sen Yieh filed?
Mao-Sen Yieh has filed 38 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 15 registered, 5 abandoned, 18 cancelled.
What trademark classes does Mao-Sen Yieh specialize in?
Mao-Sen Yieh has filed trademarks across 6 Nice Classification classes. The most common practice areas include Class 7 (Machinery), Class 9 (Computers & Electronics), Class 6 (Metal Goods), Class 28 (Toys & Sporting Goods), Class 25 (Clothing). Class 7 covers machines and machine tools; motors and engines; machine coupling and transmission components.
How long has Mao-Sen Yieh been filing trademarks?
Mao-Sen Yieh's trademark filing history with the USPTO spans from 1986 to 2025, covering 39 years of trademark practice. During this period, Mao-Sen Yieh has handled 38 trademark applications.
What is Mao-Sen Yieh's trademark registration success rate?
Mao-Sen Yieh has a 39% trademark registration rate, with 15 out of 38 resolved applications resulting in successful registration. Currently, 0 applications are pending review.