Patent Assignment
Reel/Frame 026749/0186
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
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Address Change
May 13, 2008
From: IMMUNOGEN, INC.
To: IMMUNOGEN, INC.
Reel/Frame 020930/0905 →
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 →