IP Library Assignment 026749/0225
Patent Assignment
Reel/Frame 026749/0225

Assignment of Assignor's Interest

Recorded: 2011-08-15 Pages: 2
Assignor
WIDDISON, WAYNE C.
Executed: 2011-08-15
Assignee
IMMUNOGEN INC.
830 WINTER STREET, WALTHAM, MASSACHUSETTS, 02451
Covered Property (1)
Method of Targeting Specific Cell Populations Using Cell-Binding Agent Maytansinoid Conjugates Linked via a Non-Cleavable Linker, Said Conjugates and Methods of Making Said Conjugates
Patent: 8,685,920 →
Application: 13/178,728 →
Publication: US 2011/0281856
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Patent Security Agreement Apr 6, 2023
From: IMMUNOGEN, INC.; IMMUNOGEN SWITZERLAND GMBH
To: BIOPHARMA CREDIT PLC
Reel/Frame 063282/0894 →
Release of Security Interest Feb 12, 2024
From: BIOPHARMA CREDIT PLC
To: IMMUNOGEN, INC.; IMMUNOGEN SWITZERLAND GMBH
Reel/Frame 066553/0109 →