BLUE CROSS BLUE SHIELD ASSOCIATION
539 Marks
Corp.
First Filed:Aug 19, 1947Latest Filed:Nov 4, 2025Address:200 East Randolph Street, Suite 1800, Chicago, IL 60601
Portfolio Overview
Registered
251(47%)Pending
5(1%)Dead
283(53%)Previous
12Top Classes
Class 36
Insurance, Financial Services & Real EstateClass 35
Advertising, Business Services & RetailClass 42
Software, IT Services & Scientific ResearchTTAB Proceedings
Total Proceedings
2,618As Plaintiff
2,609(100%)As Defendant
9(0%)Top Firms
Markery Law LLC(Nov 2025)
285
BLUE CROSS AND BLUE SHIELD A...(Aug 2020)
180
Partridge IP Law P.C.(Aug 2000)
10
WELSH & KATZ, LTD.(May 1996)
4
K&L Gates LLP(Sep 2005)
1
Trademark Activity Timeline(1983 – 2025)
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