CK-12 Foundation – Trademark Portfolio

Entity Type: 03

CK-12 Foundation holds 9 U.S. trademarks filed with the United States Patent and Trademark Office (USPTO), with a strong focus on Class 9 (Computers & Electronics) — 5 filings in this category. The portfolio also extends into Class 41 (Education & Entertainment) across 5 Nice Classification classes. Currently, 9 trademarks are registered. Notable registered marks include FLEXLET, FLEXBOOK, FLEXLETS, FLEXMATH, and FLEXBOOKS. The owner is based in Palo Alto, CA.