Trademark Attorney / Law Firm
Calvin Chai – Trademark Portfolio
With a filing history spanning 28 years (1985–2026), Calvin Chai has represented clients in 3,675 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 2,983 trademarks have achieved registered status, while 188 remain pending. Areas of expertise include Class 9 (Computers & Electronics) and Class 11 (Environmental Control), among 20 Nice Classification classes represented.
Showing of trademarks Trademarks
Practice Areas by Trademark Class
Calvin Chai'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
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying
Games and playthings; gymnastic and sporting articles; decorations for Christmas trees
Machines and machine tools; motors and engines; machine coupling and transmission components
Leather and imitations of leather; animal skins, hides; trunks and travelling bags
Frequently Asked Questions
How many trademark applications has Calvin Chai filed?
Calvin Chai has filed 3,675 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 2,983 registered, 188 pending, 349 abandoned, 124 cancelled.
What trademark classes does Calvin Chai specialize in?
Calvin Chai has filed trademarks across 20 Nice Classification classes. The most common practice areas include Class 9 (Computers & Electronics), Class 11 (Environmental Control), Class 25 (Clothing), Class 21 (Housewares), Class 28 (Toys & Sporting Goods). Class 9 covers scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments.
How long has Calvin Chai been filing trademarks?
Calvin Chai's trademark filing history with the USPTO spans from 1985 to 2026, covering 41 years of trademark practice. During this period, Calvin Chai has handled 3,675 trademark applications.
What is Calvin Chai's trademark registration success rate?
Calvin Chai has a 86% trademark registration rate, with 2,983 out of 3,456 resolved applications resulting in successful registration. Currently, 188 applications are pending review.