Trademark Attorney / Law Firm

Sean D. O'Brien – Trademark Portfolio

With a filing history spanning 36 years (1956–2026), Sean D. O'Brien has represented clients in 343 trademark filings before the United States Patent and Trademark Office (USPTO). Over the course of this practice, 184 trademarks have achieved registered status, while 40 remain pending. Areas of expertise include Class 9 (Computers & Electronics) and Class 32 (Light Beverages), among 20 Nice Classification classes represented.

343 Total Trademarks
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Practice Areas by Trademark Class

Sean D. O'Brien's trademark practice covers 20 Nice Classification classes, representing the range of industries and goods/services handled in their USPTO filings.

9
Computers & Electronics (66 filings)

Scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments

32
Light Beverages (37 filings)

Beers; mineral and aerated waters and other non-alcoholic beverages; fruit beverages

35
Advertising & Business (34 filings)

Advertising; business management; business administration; office functions

25
Clothing (33 filings)

Clothing, footwear, headgear

41
Education & Entertainment (30 filings)

Education; providing of training; entertainment; sporting and cultural activities

42
Computer & Scientific (28 filings)

Scientific and technological services; industrial analysis and research services

30
Staple Foods (25 filings)

Coffee, tea, cocoa and artificial coffee; rice; tapioca and sago; flour and preparations

39
Transportation & Storage (18 filings)

Transport; packaging and storage of goods; travel arrangement

40
Treatment & Processing (16 filings)

Treatment of materials

28
Toys & Sporting Goods (15 filings)

Games and playthings; gymnastic and sporting articles; decorations for Christmas trees

Frequently Asked Questions

How many trademark applications has Sean D. O'Brien filed?

Sean D. O'Brien has filed 343 trademark applications with the United States Patent and Trademark Office (USPTO). Of these, 184 registered, 40 pending, 45 abandoned, 57 cancelled.

What trademark classes does Sean D. O'Brien specialize in?

Sean D. O'Brien has filed trademarks across 20 Nice Classification classes. The most common practice areas include Class 9 (Computers & Electronics), Class 32 (Light Beverages), Class 35 (Advertising & Business), Class 25 (Clothing), Class 41 (Education & Entertainment). Class 9 covers scientific, nautical, surveying, photographic, cinematographic, optical apparatus and instruments.

How long has Sean D. O'Brien been filing trademarks?

Sean D. O'Brien's trademark filing history with the USPTO spans from 1956 to 2026, covering 70 years of trademark practice. During this period, Sean D. O'Brien has handled 343 trademark applications.

What is Sean D. O'Brien's trademark registration success rate?

Sean D. O'Brien has a 64% trademark registration rate, with 184 out of 286 resolved applications resulting in successful registration. Currently, 40 applications are pending review.