Patent Assignment
Reel/Frame 045563/0944
Assignment of Assignor's Interest
Recorded: 2018-04-17
Pages: 4
Assignor
WIDDISON, WAYNE C.
Executed: 2018-04-13
Assignee
IMMUNOGEN, INC.
830 WINTER STREET, WALTHAM, MASSACHUSETTS, 02451
Covered Property
(1)
Maytansinoid Derivatives with Self-Immolative Peptide Linkers and Conjugates Thereof
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.