Trademark Attorney / Law Firm
Zhengyan Chang – Trademark Portfolio
Zhengyan Chang has 2,938 trademark filings recorded with the United States Patent and Trademark Office (USPTO). Of these, 1,819 trademarks are successfully registered — a 86% registration rate, with an additional 812 applications currently pending. The strongest areas of practice include Class 25 (Clothing) and Class 21 (Housewares). Filing activity has been recorded from 2018 through 2025, spanning 7 years.
Showing of trademarks Trademarks
Practice Areas by Trademark Class
Zhengyan Chang's trademark practice covers 20 Nice Classification classes, representing the range of industries and goods/services handled in their USPTO filings.
Games and playthings; gymnastic and sporting articles; decorations for Christmas trees
Scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying
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 Zhengyan Chang filed?
Zhengyan Chang has filed 2,938 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 1,819 registered, 812 pending, 301 abandoned.
What trademark classes does Zhengyan Chang specialize in?
Zhengyan Chang has filed trademarks across 20 Nice Classification classes. The most common practice areas include Class 25 (Clothing), Class 21 (Housewares), Class 28 (Toys & Sporting Goods), Class 9 (Computers & Electronics), Class 11 (Environmental Control). Class 25 covers clothing, footwear, headgear.
How long has Zhengyan Chang been filing trademarks?
Zhengyan Chang's trademark filing history with the USPTO spans from 2018 to 2025, covering 7 years of trademark practice. During this period, Zhengyan Chang has handled 2,938 trademark applications.
What is Zhengyan Chang's trademark registration success rate?
Zhengyan Chang has a 86% trademark registration rate, with 1,819 out of 2,120 resolved applications resulting in successful registration. Currently, 812 applications are pending review.