Patent Assignment
Reel/Frame 028542/0081
Release of Security Interest in and Lien on Patents
Recorded: 2012-07-10
Pages: 7
Assignor
CITIBANK, N.A.
Executed: 2012-06-22
Assignee
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET, BOSTON, MASSACHUSETTS, 02116
Covered Properties
(4)
Textual Database System Using Skeletonization and Phonetic Replacement to Retrieve Words Matching or Similar to Query Words.
Patent:
4,674,066 →
Application:
06/835,659 →
Filter architecture for rapid enablement of voice access to data repositories
Application:
10/219,458 →
Publication:
US 2004/0034532
Intelligent Media Processing and Language Architecture for Speech Applications
Application:
10/267,929 →
Publication:
US 2004/0073430
Student assessment system
Application:
10/353,814 →
Publication:
US 2003/0180703
Related Assignments
(2)
Other recorded transfers of the patents in this record — the chain of ownership.
Release of Security Interest in and Lien on Patents
Jul 13, 2012
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH (F/K/A CREDIT SUISSE, CAYMAN ISLANDS BRANCH)
To: HMH PUBLISHING COMPANY LIMITED; HOUGHTON MIFFLIN HARCOURT PUBLISHERS INC.; HMH PUBLISHERS LLC; HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
Reel/Frame 028550/0338 →
Change of Name
Aug 5, 2024
From: HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
To: HMH EDUCATION COMPANY
Reel/Frame 068313/0058 →