Trademark Attorney / Law Firm
William K. Chang – Trademark Portfolio
William K. Chang has filed 23 trademarks with the United States Patent and Trademark Office (USPTO). Filing records span from 2011 to 2026, covering 6 years of intellectual property practice. Of these filings, 8 are currently registered and 1 is pending. The portfolio covers 15 Nice Classification classes, with the highest concentration in Class 9 (Computers & Electronics, 11 filings) and Class 35 (Advertising & Business, 7 filings).
Showing of trademarks Trademarks
Practice Areas by Trademark Class
William K. Chang's trademark practice covers 15 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
Advertising; business management; business administration; office functions
Scientific and technological services; industrial analysis and research services
Education; providing of training; entertainment; sporting and cultural activities
Pharmaceutical and veterinary preparations; sanitary preparations for medical purposes
Insurance; financial affairs; monetary affairs; real estate affairs
Leather and imitations of leather; animal skins, hides; trunks and travelling bags
Frequently Asked Questions
How many trademark applications has William K. Chang filed?
William K. Chang has filed 23 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 8 registered, 1 pending, 9 abandoned, 5 cancelled.
What trademark classes does William K. Chang specialize in?
William K. Chang has filed trademarks across 15 Nice Classification classes. The most common practice areas include Class 9 (Computers & Electronics), Class 35 (Advertising & Business), Class 38 (Telecommunications), Class 42 (Computer & Scientific), Class 41 (Education & Entertainment). Class 9 covers scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments.
How long has William K. Chang been filing trademarks?
William K. Chang's trademark filing history with the USPTO spans from 2011 to 2026, covering 15 years of trademark practice. During this period, William K. Chang has handled 23 trademark applications.
What is William K. Chang's trademark registration success rate?
William K. Chang has a 36% trademark registration rate, with 8 out of 22 resolved applications resulting in successful registration. Currently, 1 application is pending review.