HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY

355 Marks

Corp.

First Filed:Nov 30, 1970Latest Filed:Apr 4, 2023Address:125 High Street, Boston, MA 02110

Portfolio Overview

Top Classes

Class 9

Electronics, Software & Scientific Equipment

115(32%)

Class 16

Paper Goods and Printed Matter

112(32%)

Class 41

Education and Entertainment

80(23%)

TTAB Proceedings

Total Proceedings

As Plaintiff

9(64%)

As Defendant

5(36%)

Top Firms

Trademark Activity Timeline(1986 – 2023)

Trademark Portfolio

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