Trademark Attorney / Law Firm
William Chang – Trademark Portfolio
With a filing history spanning 15 years (2002–2026), William Chang has represented clients in 138 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 46 trademarks have achieved registered status, while 66 remain pending. Areas of expertise include Class 9 (Computers & Electronics) and Class 7 (Machinery), among 20 Nice Classification classes represented.
Showing of trademarks Trademarks
Practice Areas by Trademark Class
William Chang'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
Machines and machine tools; motors and engines; machine coupling and transmission components
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying
Advertising; business management; business administration; office functions
Games and playthings; gymnastic and sporting articles; decorations for Christmas trees
Coffee, tea, cocoa and artificial coffee; rice; tapioca and sago; flour and preparations
Frequently Asked Questions
How many trademark applications has William Chang filed?
William Chang has filed 138 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 46 registered, 66 pending, 24 abandoned, 1 cancelled.
What trademark classes does William Chang specialize in?
William Chang has filed trademarks across 20 Nice Classification classes. The most common practice areas include Class 9 (Computers & Electronics), Class 7 (Machinery), Class 25 (Clothing), Class 20 (Furniture), Class 21 (Housewares). Class 9 covers scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments.
How long has William Chang been filing trademarks?
William Chang's trademark filing history with the USPTO spans from 2002 to 2026, covering 24 years of trademark practice. During this period, William Chang has handled 138 trademark applications.
What is William Chang's trademark registration success rate?
William Chang has a 65% trademark registration rate, with 46 out of 71 resolved applications resulting in successful registration. Currently, 66 applications are pending review.